void
_mesa_Disable( GLenum cap )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
_mesa_set_enable( ctx, cap, GL_FALSE );
}
/**
* Enable GL capability. Called by glEnable()
* \param cap state to enable.
*/
void GLAPIENTRY
_mesa_Enable( GLenum cap )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
_mesa_set_enable( ctx, cap, GL_TRUE );
}
/*
* Allocate a new stencil buffer. If there's an old one it will be
* deallocated first. The new stencil buffer will be uninitialized.
*/
void gl_alloc_stencil_buffer( GLcontext *ctx )
{
GLuint buffersize = ctx->Buffer->Width * ctx->Buffer->Height;
/* deallocate current stencil buffer if present */
if (ctx->Buffer->Stencil) {
FREE(ctx->Buffer->Stencil);
ctx->Buffer->Stencil = NULL;
}
/* allocate new stencil buffer */
ctx->Buffer->Stencil = (GLstencil *) MALLOC(buffersize * sizeof(GLstencil));
if (!ctx->Buffer->Stencil) {
/* out of memory */
_mesa_set_enable( ctx, GL_STENCIL_TEST, GL_FALSE );
gl_error( ctx, GL_OUT_OF_MEMORY, "gl_alloc_stencil_buffer" );
}
}
bool
brw_meta_fast_clear(struct brw_context *brw, struct gl_framebuffer *fb,
GLbitfield buffers, bool partial_clear)
{
struct gl_context *ctx = &brw->ctx;
mesa_format format;
enum { FAST_CLEAR, REP_CLEAR, PLAIN_CLEAR } clear_type;
GLbitfield plain_clear_buffers, meta_save, rep_clear_buffers, fast_clear_buffers;
struct rect fast_clear_rect, clear_rect;
int layers;
fast_clear_buffers = rep_clear_buffers = plain_clear_buffers = 0;
/* First we loop through the color draw buffers and determine which ones
* can be fast cleared, which ones can use the replicated write and which
* ones have to fall back to regular color clear.
*/
for (unsigned buf = 0; buf < fb->_NumColorDrawBuffers; buf++) {
struct gl_renderbuffer *rb = fb->_ColorDrawBuffers[buf];
struct intel_renderbuffer *irb = intel_renderbuffer(rb);
int index = fb->_ColorDrawBufferIndexes[buf];
/* Only clear the buffers present in the provided mask */
if (((1 << index) & buffers) == 0)
continue;
/* If this is an ES2 context or GL_ARB_ES2_compatibility is supported,
* the framebuffer can be complete with some attachments missing. In
* this case the _ColorDrawBuffers pointer will be NULL.
*/
if (rb == NULL)
continue;
clear_type = FAST_CLEAR;
/* We don't have fast clear until gen7. */
if (brw->gen < 7)
clear_type = REP_CLEAR;
if (irb->mt->fast_clear_state == INTEL_FAST_CLEAR_STATE_NO_MCS)
clear_type = REP_CLEAR;
/* We can't do scissored fast clears because of the restrictions on the
* fast clear rectangle size.
*/
if (partial_clear)
clear_type = REP_CLEAR;
/* Fast clear is only supported for colors where all components are
* either 0 or 1.
*/
format = _mesa_get_render_format(ctx, irb->mt->format);
if (!is_color_fast_clear_compatible(brw, format, &ctx->Color.ClearColor))
clear_type = REP_CLEAR;
/* From the SNB PRM (Vol4_Part1):
*
* "Replicated data (Message Type = 111) is only supported when
* accessing tiled memory. Using this Message Type to access
* linear (untiled) memory is UNDEFINED."
*/
if (irb->mt->tiling == I915_TILING_NONE) {
perf_debug("falling back to plain clear because buffers are untiled\n");
clear_type = PLAIN_CLEAR;
}
/* Constant color writes ignore everything in blend and color calculator
* state. This is not documented.
*/
GLubyte *color_mask = ctx->Color.ColorMask[buf];
for (int i = 0; i < 4; i++) {
if (_mesa_format_has_color_component(irb->mt->format, i) &&
!color_mask[i]) {
perf_debug("falling back to plain clear because of color mask\n");
clear_type = PLAIN_CLEAR;
}
}
/* Allocate the MCS for non MSRT surfaces now if we're doing a fast
* clear and we don't have the MCS yet. On failure, fall back to
* replicated clear.
*/
if (clear_type == FAST_CLEAR && irb->mt->mcs_mt == NULL)
if (!intel_miptree_alloc_non_msrt_mcs(brw, irb->mt))
clear_type = REP_CLEAR;
switch (clear_type) {
case FAST_CLEAR:
irb->mt->fast_clear_color_value =
compute_fast_clear_color_bits(&ctx->Color.ClearColor);
irb->need_downsample = true;
/* If the buffer is already in INTEL_FAST_CLEAR_STATE_CLEAR, the
* clear is redundant and can be skipped. Only skip after we've
* updated the fast clear color above though.
*/
if (irb->mt->fast_clear_state == INTEL_FAST_CLEAR_STATE_CLEAR)
continue;
/* Set fast_clear_state to RESOLVED so we don't try resolve them when
* we draw, in case the mt is also bound as a texture.
*/
irb->mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_RESOLVED;
irb->need_downsample = true;
fast_clear_buffers |= 1 << index;
get_fast_clear_rect(brw, fb, irb, &fast_clear_rect);
break;
case REP_CLEAR:
rep_clear_buffers |= 1 << index;
get_buffer_rect(brw, fb, irb, &clear_rect);
break;
case PLAIN_CLEAR:
plain_clear_buffers |= 1 << index;
get_buffer_rect(brw, fb, irb, &clear_rect);
continue;
}
}
if (!(fast_clear_buffers | rep_clear_buffers)) {
if (plain_clear_buffers)
/* If we only have plain clears, skip the meta save/restore. */
goto out;
else
/* Nothing left to do. This happens when we hit the redundant fast
* clear case above and nothing else.
*/
return true;
}
meta_save =
MESA_META_ALPHA_TEST |
MESA_META_BLEND |
MESA_META_DEPTH_TEST |
MESA_META_RASTERIZATION |
MESA_META_SHADER |
MESA_META_STENCIL_TEST |
MESA_META_VERTEX |
MESA_META_VIEWPORT |
MESA_META_CLIP |
MESA_META_CLAMP_FRAGMENT_COLOR |
MESA_META_MULTISAMPLE |
MESA_META_OCCLUSION_QUERY |
MESA_META_DRAW_BUFFERS;
_mesa_meta_begin(ctx, meta_save);
if (!brw_fast_clear_init(brw)) {
/* This is going to be hard to recover from, most likely out of memory.
* Bail and let meta try and (probably) fail for us.
*/
plain_clear_buffers = buffers;
goto bail_to_meta;
}
/* Clears never have the color clamped. */
if (ctx->Extensions.ARB_color_buffer_float)
_mesa_ClampColor(GL_CLAMP_FRAGMENT_COLOR, GL_FALSE);
_mesa_set_enable(ctx, GL_DEPTH_TEST, GL_FALSE);
_mesa_DepthMask(GL_FALSE);
_mesa_set_enable(ctx, GL_STENCIL_TEST, GL_FALSE);
use_rectlist(brw, true);
layers = MAX2(1, fb->MaxNumLayers);
if (fast_clear_buffers) {
_mesa_meta_drawbuffers_from_bitfield(fast_clear_buffers);
brw_bind_rep_write_shader(brw, (float *) fast_clear_color);
set_fast_clear_op(brw, GEN7_PS_RENDER_TARGET_FAST_CLEAR_ENABLE);
brw_draw_rectlist(ctx, &fast_clear_rect, layers);
set_fast_clear_op(brw, 0);
}
if (rep_clear_buffers) {
_mesa_meta_drawbuffers_from_bitfield(rep_clear_buffers);
brw_bind_rep_write_shader(brw, ctx->Color.ClearColor.f);
brw_draw_rectlist(ctx, &clear_rect, layers);
}
/* Now set the mts we cleared to INTEL_FAST_CLEAR_STATE_CLEAR so we'll
* resolve them eventually.
*/
for (unsigned buf = 0; buf < fb->_NumColorDrawBuffers; buf++) {
struct gl_renderbuffer *rb = fb->_ColorDrawBuffers[buf];
struct intel_renderbuffer *irb = intel_renderbuffer(rb);
int index = fb->_ColorDrawBufferIndexes[buf];
if ((1 << index) & fast_clear_buffers)
irb->mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_CLEAR;
}
bail_to_meta:
/* Dirty _NEW_BUFFERS so we reemit SURFACE_STATE which sets the fast clear
* color before resolve and sets irb->mt->fast_clear_state to UNRESOLVED if
* we render to it.
*/
brw->NewGLState |= _NEW_BUFFERS;
/* Set the custom state back to normal and dirty the same bits as above */
use_rectlist(brw, false);
_mesa_meta_end(ctx);
/* From BSpec: Render Target Fast Clear:
*
* After Render target fast clear, pipe-control with color cache
* write-flush must be issued before sending any DRAW commands on that
* render target.
*/
intel_batchbuffer_emit_mi_flush(brw);
/* If we had to fall back to plain clear for any buffers, clear those now
* by calling into meta.
*/
out:
if (plain_clear_buffers)
_mesa_meta_glsl_Clear(&brw->ctx, plain_clear_buffers);
return true;
}
/**
* Leave meta state. This is like a light-weight version of glPopAttrib().
*/
void
_mesa_meta_end(struct gl_context *ctx)
{
struct save_state *save = &ctx->Meta->Save[--ctx->Meta->SaveStackDepth];
const GLbitfield state = save->SavedState;
if (state & MESA_META_ALPHA_TEST) {
if (ctx->Color.AlphaEnabled != save->AlphaEnabled)
_mesa_set_enable(ctx, GL_ALPHA_TEST, save->AlphaEnabled);
_mesa_AlphaFunc(save->AlphaFunc, save->AlphaRef);
}
if (state & MESA_META_BLEND) {
if (ctx->Color.BlendEnabled != save->BlendEnabled) {
_mesa_set_enable(ctx, GL_BLEND, (save->BlendEnabled & 1));
}
if (ctx->Color.ColorLogicOpEnabled != save->ColorLogicOpEnabled)
_mesa_set_enable(ctx, GL_COLOR_LOGIC_OP, save->ColorLogicOpEnabled);
}
if (state & MESA_META_COLOR_MASK) {
if (!TEST_EQ_4V(ctx->Color.ColorMask, save->ColorMask)) {
_mesa_ColorMask(save->ColorMask[0], save->ColorMask[1],
save->ColorMask[2], save->ColorMask[3]);
}
}
if (state & MESA_META_DEPTH_TEST) {
if (ctx->Depth.Test != save->Depth.Test)
_mesa_set_enable(ctx, GL_DEPTH_TEST, save->Depth.Test);
_mesa_DepthFunc(save->Depth.Func);
_mesa_DepthMask(save->Depth.Mask);
}
if (state & MESA_META_FOG) {
_mesa_set_enable(ctx, GL_FOG, save->Fog);
}
if (state & MESA_META_PIXEL_STORE) {
ctx->Pack = save->Pack;
ctx->Unpack = save->Unpack;
}
if (state & MESA_META_PIXEL_TRANSFER) {
ctx->Pixel.RedScale = save->RedScale;
ctx->Pixel.RedBias = save->RedBias;
ctx->Pixel.GreenScale = save->GreenScale;
ctx->Pixel.GreenBias = save->GreenBias;
ctx->Pixel.BlueScale = save->BlueScale;
ctx->Pixel.BlueBias = save->BlueBias;
ctx->Pixel.AlphaScale = save->AlphaScale;
ctx->Pixel.AlphaBias = save->AlphaBias;
ctx->Pixel.MapColorFlag = save->MapColorFlag;
/* XXX more state */
ctx->NewState |=_NEW_PIXEL;
}
if (state & MESA_META_RASTERIZATION) {
_mesa_PolygonMode(GL_FRONT, save->FrontPolygonMode);
_mesa_PolygonMode(GL_BACK, save->BackPolygonMode);
_mesa_set_enable(ctx, GL_POLYGON_STIPPLE, save->PolygonStipple);
_mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL, save->PolygonOffset);
_mesa_set_enable(ctx, GL_POLYGON_SMOOTH, save->PolygonSmooth);
_mesa_set_enable(ctx, GL_CULL_FACE, save->PolygonCull);
}
if (state & MESA_META_SCISSOR) {
_mesa_set_enable(ctx, GL_SCISSOR_TEST, save->Scissor.Enabled);
_mesa_Scissor(save->Scissor.X, save->Scissor.Y,
save->Scissor.Width, save->Scissor.Height);
}
if (state & MESA_META_STENCIL_TEST) {
const struct gl_stencil_attrib *stencil = &save->Stencil;
_mesa_set_enable(ctx, GL_STENCIL_TEST, stencil->Enabled);
_mesa_ClearStencil(stencil->Clear);
_mesa_StencilFunc(stencil->Function,
stencil->Ref,
stencil->ValueMask);
_mesa_StencilMask(stencil->WriteMask);
_mesa_StencilOp(stencil->FailFunc, stencil->ZFailFunc, stencil->ZPassFunc);
}
if (state & MESA_META_TEXTURE) {
GLuint tgt;
/* restore texenv for unit[0] */
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, save->EnvMode);
/* restore texture objects for unit[0] only */
for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) {
if (ctx->Texture.Unit.CurrentTex[tgt] != save->CurrentTexture[tgt]) {
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
_mesa_reference_texobj(&ctx->Texture.Unit.CurrentTex[tgt],
save->CurrentTexture[tgt]);
}
_mesa_reference_texobj(&save->CurrentTexture[tgt], NULL);
}
/* Restore fixed function texture enables, texgen */
if (ctx->Texture.Unit.Enabled != save->TexEnabled) {
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
ctx->Texture.Unit.Enabled = save->TexEnabled;
}
if (ctx->Texture.Unit.TexGenEnabled != save->TexGenEnabled) {
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
ctx->Texture.Unit.TexGenEnabled = save->TexGenEnabled;
}
}
if (state & MESA_META_TRANSFORM) {
_mesa_MatrixMode(GL_TEXTURE);
_mesa_LoadMatrixf(save->TextureMatrix);
_mesa_MatrixMode(GL_MODELVIEW);
_mesa_LoadMatrixf(save->ModelviewMatrix);
_mesa_MatrixMode(GL_PROJECTION);
_mesa_LoadMatrixf(save->ProjectionMatrix);
_mesa_MatrixMode(save->MatrixMode);
}
if (state & MESA_META_CLIP) {
if (save->ClipPlanesEnabled) {
GLuint i;
for (i = 0; i < ctx->Const.MaxClipPlanes; i++) {
if (save->ClipPlanesEnabled & (1 << i)) {
_mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_TRUE);
}
}
}
}
if (state & MESA_META_VIEWPORT) {
if (save->ViewportX != ctx->Viewport.X ||
save->ViewportY != ctx->Viewport.Y ||
save->ViewportW != ctx->Viewport.Width ||
save->ViewportH != ctx->Viewport.Height) {
_mesa_set_viewport(ctx, save->ViewportX, save->ViewportY,
save->ViewportW, save->ViewportH);
}
_mesa_DepthRange(save->DepthNear, save->DepthFar);
}
/* misc */
if (save->Lighting) {
_mesa_set_enable(ctx, GL_LIGHTING, GL_TRUE);
}
if (save->RasterDiscard) {
_mesa_set_enable(ctx, GL_RASTERIZER_DISCARD, GL_TRUE);
}
}
/**
* Enter meta state. This is like a light-weight version of glPushAttrib
* but it also resets most GL state back to default values.
*
* \param state bitmask of MESA_META_* flags indicating which attribute groups
* to save and reset to their defaults
*/
void
_mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
{
struct save_state *save;
/* hope MAX_META_OPS_DEPTH is large enough */
assert(ctx->Meta->SaveStackDepth < MAX_META_OPS_DEPTH);
save = &ctx->Meta->Save[ctx->Meta->SaveStackDepth++];
memset(save, 0, sizeof(*save));
save->SavedState = state;
if (state & MESA_META_ALPHA_TEST) {
save->AlphaEnabled = ctx->Color.AlphaEnabled;
save->AlphaFunc = ctx->Color.AlphaFunc;
save->AlphaRef = ctx->Color.AlphaRef;
if (ctx->Color.AlphaEnabled)
_mesa_set_enable(ctx, GL_ALPHA_TEST, GL_FALSE);
}
if (state & MESA_META_BLEND) {
save->BlendEnabled = ctx->Color.BlendEnabled;
if (ctx->Color.BlendEnabled) {
_mesa_set_enable(ctx, GL_BLEND, GL_FALSE);
}
save->ColorLogicOpEnabled = ctx->Color.ColorLogicOpEnabled;
if (ctx->Color.ColorLogicOpEnabled)
_mesa_set_enable(ctx, GL_COLOR_LOGIC_OP, GL_FALSE);
}
if (state & MESA_META_COLOR_MASK) {
memcpy(save->ColorMask, ctx->Color.ColorMask,
sizeof(ctx->Color.ColorMask));
if (!ctx->Color.ColorMask[0] ||
!ctx->Color.ColorMask[1] ||
!ctx->Color.ColorMask[2] ||
!ctx->Color.ColorMask[3])
_mesa_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
}
if (state & MESA_META_DEPTH_TEST) {
save->Depth = ctx->Depth; /* struct copy */
if (ctx->Depth.Test)
_mesa_set_enable(ctx, GL_DEPTH_TEST, GL_FALSE);
}
if (state & MESA_META_FOG) {
save->Fog = ctx->Fog.Enabled;
if (ctx->Fog.Enabled)
_mesa_set_enable(ctx, GL_FOG, GL_FALSE);
}
if (state & MESA_META_PIXEL_STORE) {
save->Pack = ctx->Pack;
save->Unpack = ctx->Unpack;
ctx->Pack = ctx->DefaultPacking;
ctx->Unpack = ctx->DefaultPacking;
}
if (state & MESA_META_PIXEL_TRANSFER) {
save->RedScale = ctx->Pixel.RedScale;
save->RedBias = ctx->Pixel.RedBias;
save->GreenScale = ctx->Pixel.GreenScale;
save->GreenBias = ctx->Pixel.GreenBias;
save->BlueScale = ctx->Pixel.BlueScale;
save->BlueBias = ctx->Pixel.BlueBias;
save->AlphaScale = ctx->Pixel.AlphaScale;
save->AlphaBias = ctx->Pixel.AlphaBias;
save->MapColorFlag = ctx->Pixel.MapColorFlag;
ctx->Pixel.RedScale = 1.0F;
ctx->Pixel.RedBias = 0.0F;
ctx->Pixel.GreenScale = 1.0F;
ctx->Pixel.GreenBias = 0.0F;
ctx->Pixel.BlueScale = 1.0F;
ctx->Pixel.BlueBias = 0.0F;
ctx->Pixel.AlphaScale = 1.0F;
ctx->Pixel.AlphaBias = 0.0F;
ctx->Pixel.MapColorFlag = GL_FALSE;
/* XXX more state */
ctx->NewState |=_NEW_PIXEL;
}
if (state & MESA_META_RASTERIZATION) {
save->FrontPolygonMode = ctx->Polygon.FrontMode;
save->BackPolygonMode = ctx->Polygon.BackMode;
save->PolygonOffset = ctx->Polygon.OffsetFill;
save->PolygonSmooth = ctx->Polygon.SmoothFlag;
save->PolygonStipple = ctx->Polygon.StippleFlag;
save->PolygonCull = ctx->Polygon.CullFlag;
_mesa_PolygonMode(GL_FRONT_AND_BACK, GL_FILL);
_mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL, GL_FALSE);
_mesa_set_enable(ctx, GL_POLYGON_SMOOTH, GL_FALSE);
_mesa_set_enable(ctx, GL_POLYGON_STIPPLE, GL_FALSE);
_mesa_set_enable(ctx, GL_CULL_FACE, GL_FALSE);
}
if (state & MESA_META_SCISSOR) {
save->Scissor = ctx->Scissor; /* struct copy */
_mesa_set_enable(ctx, GL_SCISSOR_TEST, GL_FALSE);
}
if (state & MESA_META_STENCIL_TEST) {
save->Stencil = ctx->Stencil; /* struct copy */
if (ctx->Stencil.Enabled)
_mesa_set_enable(ctx, GL_STENCIL_TEST, GL_FALSE);
/* NOTE: other stencil state not reset */
}
if (state & MESA_META_TEXTURE) {
GLuint tgt;
save->EnvMode = ctx->Texture.Unit.EnvMode;
/* Disable all texture units */
save->TexEnabled = ctx->Texture.Unit.Enabled;
save->TexGenEnabled = ctx->Texture.Unit.TexGenEnabled;
if (ctx->Texture.Unit.Enabled ||
ctx->Texture.Unit.TexGenEnabled) {
_mesa_set_enable(ctx, GL_TEXTURE_1D, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_2D, GL_FALSE);
if (ctx->Extensions.ARB_texture_cube_map)
_mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_GEN_S, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_GEN_T, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_GEN_R, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_GEN_Q, GL_FALSE);
}
/* save current texture objects for unit[0] only */
for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) {
_mesa_reference_texobj(&save->CurrentTexture[tgt],
ctx->Texture.Unit.CurrentTex[tgt]);
}
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
}
if (state & MESA_META_TRANSFORM) {
memcpy(save->ModelviewMatrix, ctx->ModelviewMatrixStack.Top->m,
16 * sizeof(GLfloat));
memcpy(save->ProjectionMatrix, ctx->ProjectionMatrixStack.Top->m,
16 * sizeof(GLfloat));
memcpy(save->TextureMatrix, ctx->TextureMatrixStack.Top->m,
16 * sizeof(GLfloat));
save->MatrixMode = ctx->Transform.MatrixMode;
/* set 1:1 vertex:pixel coordinate transform */
_mesa_MatrixMode(GL_TEXTURE);
_mesa_LoadIdentity();
_mesa_MatrixMode(GL_MODELVIEW);
_mesa_LoadIdentity();
_mesa_MatrixMode(GL_PROJECTION);
_mesa_LoadIdentity();
_mesa_Ortho(0.0, ctx->DrawBuffer->Width,
0.0, ctx->DrawBuffer->Height,
-1.0, 1.0);
}
if (state & MESA_META_CLIP) {
save->ClipPlanesEnabled = ctx->Transform.ClipPlanesEnabled;
if (ctx->Transform.ClipPlanesEnabled) {
GLuint i;
for (i = 0; i < ctx->Const.MaxClipPlanes; i++) {
_mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_FALSE);
}
}
}
if (state & MESA_META_VIEWPORT) {
/* save viewport state */
save->ViewportX = ctx->Viewport.X;
save->ViewportY = ctx->Viewport.Y;
save->ViewportW = ctx->Viewport.Width;
save->ViewportH = ctx->Viewport.Height;
/* set viewport to match window size */
if (ctx->Viewport.X != 0 ||
ctx->Viewport.Y != 0 ||
ctx->Viewport.Width != ctx->DrawBuffer->Width ||
ctx->Viewport.Height != ctx->DrawBuffer->Height) {
_mesa_set_viewport(ctx, 0, 0,
ctx->DrawBuffer->Width, ctx->DrawBuffer->Height);
}
/* save depth range state */
save->DepthNear = ctx->Viewport.Near;
save->DepthFar = ctx->Viewport.Far;
/* set depth range to default */
_mesa_DepthRange(0.0, 1.0);
}
if (state & MESA_META_SELECT_FEEDBACK) {
save->RenderMode = ctx->RenderMode;
if (ctx->RenderMode == GL_SELECT) {
save->Select = ctx->Select; /* struct copy */
_mesa_RenderMode(GL_RENDER);
} else if (ctx->RenderMode == GL_FEEDBACK) {
save->Feedback = ctx->Feedback; /* struct copy */
_mesa_RenderMode(GL_RENDER);
}
}
/* misc */
{
save->Lighting = ctx->Light.Enabled;
if (ctx->Light.Enabled)
_mesa_set_enable(ctx, GL_LIGHTING, GL_FALSE);
save->RasterDiscard = ctx->RasterDiscard;
if (ctx->RasterDiscard)
_mesa_set_enable(ctx, GL_RASTERIZER_DISCARD, GL_FALSE);
}
}
/**
* Meta implementation of ctx->Driver.BlitFramebuffer() in terms
* of texture mapping and polygon rendering.
*/
GLbitfield
_mesa_meta_BlitFramebuffer(struct gl_context *ctx,
const struct gl_framebuffer *readFb,
const struct gl_framebuffer *drawFb,
GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
GLbitfield mask, GLenum filter)
{
const GLint dstW = abs(dstX1 - dstX0);
const GLint dstH = abs(dstY1 - dstY0);
const GLint dstFlipX = (dstX1 - dstX0) / dstW;
const GLint dstFlipY = (dstY1 - dstY0) / dstH;
struct {
GLint srcX0, srcY0, srcX1, srcY1;
GLint dstX0, dstY0, dstX1, dstY1;
} clip = {
srcX0, srcY0, srcX1, srcY1,
dstX0, dstY0, dstX1, dstY1
};
const GLboolean use_glsl_version = ctx->Extensions.ARB_vertex_shader &&
ctx->Extensions.ARB_fragment_shader;
/* Multisample texture blit support requires texture multisample. */
if (readFb->Visual.samples > 0 &&
!ctx->Extensions.ARB_texture_multisample) {
return mask;
}
/* Clip a copy of the blit coordinates. If these differ from the input
* coordinates, then we'll set the scissor.
*/
if (!_mesa_clip_blit(ctx, readFb, drawFb,
&clip.srcX0, &clip.srcY0, &clip.srcX1, &clip.srcY1,
&clip.dstX0, &clip.dstY0, &clip.dstX1, &clip.dstY1)) {
/* clipped/scissored everything away */
return 0;
}
/* Only scissor affects blit, but we're doing to set a custom scissor if
* necessary anyway, so save/clear state.
*/
_mesa_meta_begin(ctx, MESA_META_ALL & ~MESA_META_DRAW_BUFFERS);
/* Dithering shouldn't be performed for glBlitFramebuffer */
_mesa_set_enable(ctx, GL_DITHER, GL_FALSE);
/* If the clipping earlier changed the destination rect at all, then
* enable the scissor to clip to it.
*/
if (clip.dstX0 != dstX0 || clip.dstY0 != dstY0 ||
clip.dstX1 != dstX1 || clip.dstY1 != dstY1) {
_mesa_set_enable(ctx, GL_SCISSOR_TEST, GL_TRUE);
_mesa_Scissor(MIN2(clip.dstX0, clip.dstX1),
MIN2(clip.dstY0, clip.dstY1),
abs(clip.dstX0 - clip.dstX1),
abs(clip.dstY0 - clip.dstY1));
}
/* Try faster, direct texture approach first */
if (mask & GL_COLOR_BUFFER_BIT) {
if (blitframebuffer_texture(ctx, readFb, drawFb,
srcX0, srcY0, srcX1, srcY1,
dstX0, dstY0, dstX1, dstY1,
filter, dstFlipX, dstFlipY,
use_glsl_version, false)) {
mask &= ~GL_COLOR_BUFFER_BIT;
}
}
if (mask & GL_DEPTH_BUFFER_BIT && use_glsl_version) {
if (blitframebuffer_texture(ctx, readFb, drawFb,
srcX0, srcY0, srcX1, srcY1,
dstX0, dstY0, dstX1, dstY1,
filter, dstFlipX, dstFlipY,
use_glsl_version, true)) {
mask &= ~GL_DEPTH_BUFFER_BIT;
}
}
if (mask & GL_STENCIL_BUFFER_BIT) {
/* XXX can't easily do stencil */
}
_mesa_meta_end(ctx);
return mask;
}
/**
* Try to do a color or depth glBlitFramebuffer using texturing.
*
* We can do this when the src renderbuffer is actually a texture, or when the
* driver exposes BindRenderbufferTexImage().
*/
static bool
blitframebuffer_texture(struct gl_context *ctx,
const struct gl_framebuffer *readFb,
const struct gl_framebuffer *drawFb,
GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
GLenum filter, GLint flipX, GLint flipY,
GLboolean glsl_version, GLboolean do_depth)
{
int att_index = do_depth ? BUFFER_DEPTH : readFb->_ColorReadBufferIndex;
const struct gl_renderbuffer_attachment *readAtt =
&readFb->Attachment[att_index];
struct blit_state *blit = &ctx->Meta->Blit;
struct fb_tex_blit_state fb_tex_blit;
const GLint dstX = MIN2(dstX0, dstX1);
const GLint dstY = MIN2(dstY0, dstY1);
const GLint dstW = abs(dstX1 - dstX0);
const GLint dstH = abs(dstY1 - dstY0);
const int srcW = abs(srcX1 - srcX0);
const int srcH = abs(srcY1 - srcY0);
bool scaled_blit = false;
struct gl_texture_object *texObj;
GLuint srcLevel;
GLenum target;
struct gl_renderbuffer *rb = readAtt->Renderbuffer;
struct temp_texture *meta_temp_texture;
if (rb->NumSamples && !ctx->Extensions.ARB_texture_multisample)
return false;
_mesa_meta_fb_tex_blit_begin(ctx, &fb_tex_blit);
if (readAtt->Texture &&
(readAtt->Texture->Target == GL_TEXTURE_2D ||
readAtt->Texture->Target == GL_TEXTURE_RECTANGLE ||
readAtt->Texture->Target == GL_TEXTURE_2D_MULTISAMPLE ||
readAtt->Texture->Target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)) {
/* If there's a texture attached of a type we can handle, then just use
* it directly.
*/
srcLevel = readAtt->TextureLevel;
texObj = readAtt->Texture;
target = texObj->Target;
} else if (!readAtt->Texture && ctx->Driver.BindRenderbufferTexImage) {
if (!_mesa_meta_bind_rb_as_tex_image(ctx, rb, &fb_tex_blit.tempTex,
&texObj, &target))
return false;
srcLevel = 0;
if (_mesa_is_winsys_fbo(readFb)) {
GLint temp = srcY0;
srcY0 = rb->Height - srcY1;
srcY1 = rb->Height - temp;
flipY = -flipY;
}
} else {
GLenum tex_base_format;
/* Fall back to doing a CopyTexSubImage to get the destination
* renderbuffer into a texture.
*/
if (ctx->Meta->Blit.no_ctsi_fallback)
return false;
if (rb->NumSamples > 1)
return false;
if (do_depth) {
meta_temp_texture = _mesa_meta_get_temp_depth_texture(ctx);
tex_base_format = GL_DEPTH_COMPONENT;
} else {
meta_temp_texture = _mesa_meta_get_temp_texture(ctx);
tex_base_format =
_mesa_base_tex_format(ctx, rb->InternalFormat);
}
srcLevel = 0;
target = meta_temp_texture->Target;
texObj = _mesa_lookup_texture(ctx, meta_temp_texture->TexObj);
if (texObj == NULL) {
return false;
}
_mesa_meta_setup_copypix_texture(ctx, meta_temp_texture,
srcX0, srcY0,
srcW, srcH,
tex_base_format,
filter);
srcX0 = 0;
srcY0 = 0;
srcX1 = srcW;
srcY1 = srcH;
}
fb_tex_blit.baseLevelSave = texObj->BaseLevel;
fb_tex_blit.maxLevelSave = texObj->MaxLevel;
fb_tex_blit.stencilSamplingSave = texObj->StencilSampling;
scaled_blit = dstW != srcW || dstH != srcH;
if (glsl_version) {
setup_glsl_blit_framebuffer(ctx, blit, drawFb, rb, target, filter, scaled_blit,
do_depth);
}
else {
_mesa_meta_setup_ff_tnl_for_blit(ctx,
&ctx->Meta->Blit.VAO,
&ctx->Meta->Blit.buf_obj,
2);
}
/*
printf("Blit from texture!\n");
printf(" srcAtt %p dstAtt %p\n", readAtt, drawAtt);
printf(" srcTex %p dstText %p\n", texObj, drawAtt->Texture);
*/
fb_tex_blit.sampler = _mesa_meta_setup_sampler(ctx, texObj, target, filter,
srcLevel);
/* Always do our blits with no net sRGB decode or encode.
*
* However, if both the src and dst can be srgb decode/encoded, enable them
* so that we do any blending (from scaling or from MSAA resolves) in the
* right colorspace.
*
* Our choice of not doing any net encode/decode is from the GL 3.0
* specification:
*
* "Blit operations bypass the fragment pipeline. The only fragment
* operations which affect a blit are the pixel ownership test and the
* scissor test."
*
* The GL 4.4 specification disagrees and says that the sRGB part of the
* fragment pipeline applies, but this was found to break applications.
*/
if (ctx->Extensions.EXT_texture_sRGB_decode) {
if (_mesa_get_format_color_encoding(rb->Format) == GL_SRGB &&
drawFb->Visual.sRGBCapable) {
_mesa_SamplerParameteri(fb_tex_blit.sampler,
GL_TEXTURE_SRGB_DECODE_EXT, GL_DECODE_EXT);
_mesa_set_framebuffer_srgb(ctx, GL_TRUE);
} else {
_mesa_SamplerParameteri(fb_tex_blit.sampler,
GL_TEXTURE_SRGB_DECODE_EXT,
GL_SKIP_DECODE_EXT);
/* set_framebuffer_srgb was set by _mesa_meta_begin(). */
}
}
if (!glsl_version) {
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
_mesa_set_enable(ctx, target, GL_TRUE);
}
/* Prepare vertex data (the VBO was previously created and bound) */
{
struct vertex verts[4];
GLfloat s0, t0, s1, t1;
if (target == GL_TEXTURE_2D) {
const struct gl_texture_image *texImage
= _mesa_select_tex_image(texObj, target, srcLevel);
s0 = srcX0 / (float) texImage->Width;
s1 = srcX1 / (float) texImage->Width;
t0 = srcY0 / (float) texImage->Height;
t1 = srcY1 / (float) texImage->Height;
}
else {
assert(target == GL_TEXTURE_RECTANGLE_ARB ||
target == GL_TEXTURE_2D_MULTISAMPLE ||
target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY);
s0 = (float) srcX0;
s1 = (float) srcX1;
t0 = (float) srcY0;
t1 = (float) srcY1;
}
/* Silence valgrind warnings about reading uninitialized stack. */
memset(verts, 0, sizeof(verts));
/* setup vertex positions */
verts[0].x = -1.0F * flipX;
verts[0].y = -1.0F * flipY;
verts[1].x = 1.0F * flipX;
verts[1].y = -1.0F * flipY;
verts[2].x = 1.0F * flipX;
verts[2].y = 1.0F * flipY;
verts[3].x = -1.0F * flipX;
verts[3].y = 1.0F * flipY;
verts[0].tex[0] = s0;
verts[0].tex[1] = t0;
verts[0].tex[2] = readAtt->Zoffset;
verts[1].tex[0] = s1;
verts[1].tex[1] = t0;
verts[1].tex[2] = readAtt->Zoffset;
verts[2].tex[0] = s1;
verts[2].tex[1] = t1;
verts[2].tex[2] = readAtt->Zoffset;
verts[3].tex[0] = s0;
verts[3].tex[1] = t1;
verts[3].tex[2] = readAtt->Zoffset;
_mesa_buffer_sub_data(ctx, blit->buf_obj, 0, sizeof(verts), verts,
__func__);
}
/* setup viewport */
_mesa_set_viewport(ctx, 0, dstX, dstY, dstW, dstH);
_mesa_ColorMask(!do_depth, !do_depth, !do_depth, !do_depth);
_mesa_set_enable(ctx, GL_DEPTH_TEST, do_depth);
_mesa_DepthMask(do_depth);
_mesa_DepthFunc(GL_ALWAYS);
_mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
_mesa_meta_fb_tex_blit_end(ctx, target, &fb_tex_blit);
return true;
}
static void
setup_glsl_msaa_blit_shader(struct gl_context *ctx,
struct blit_state *blit,
const struct gl_framebuffer *drawFb,
struct gl_renderbuffer *src_rb,
GLenum target)
{
const char *vs_source;
char *fs_source;
void *mem_ctx;
enum blit_msaa_shader shader_index;
bool dst_is_msaa = false;
GLenum src_datatype;
const char *vec4_prefix;
const char *sampler_array_suffix = "";
char *name;
const char *texcoord_type = "vec2";
int samples;
int shader_offset = 0;
if (src_rb) {
samples = MAX2(src_rb->NumSamples, 1);
src_datatype = _mesa_get_format_datatype(src_rb->Format);
} else {
/* depth-or-color glCopyTexImage fallback path that passes a NULL rb and
* doesn't handle integer.
*/
samples = 1;
src_datatype = GL_UNSIGNED_NORMALIZED;
}
/* We expect only power of 2 samples in source multisample buffer. */
assert(samples > 0 && _mesa_is_pow_two(samples));
while (samples >> (shader_offset + 1)) {
shader_offset++;
}
/* Update the assert if we plan to support more than 16X MSAA. */
assert(shader_offset >= 0 && shader_offset <= 4);
if (drawFb->Visual.samples > 1) {
/* If you're calling meta_BlitFramebuffer with the destination
* multisampled, this is the only path that will work -- swrast and
* CopyTexImage won't work on it either.
*/
assert(ctx->Extensions.ARB_sample_shading);
dst_is_msaa = true;
/* We need shader invocation per sample, not per pixel */
_mesa_set_enable(ctx, GL_MULTISAMPLE, GL_TRUE);
_mesa_set_enable(ctx, GL_SAMPLE_SHADING, GL_TRUE);
_mesa_MinSampleShading(1.0);
}
switch (target) {
case GL_TEXTURE_2D_MULTISAMPLE:
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
if (src_rb && (src_rb->_BaseFormat == GL_DEPTH_COMPONENT ||
src_rb->_BaseFormat == GL_DEPTH_STENCIL)) {
if (dst_is_msaa)
shader_index = BLIT_MSAA_SHADER_2D_MULTISAMPLE_DEPTH_COPY;
else
shader_index = BLIT_MSAA_SHADER_2D_MULTISAMPLE_DEPTH_RESOLVE;
} else {
if (dst_is_msaa)
shader_index = BLIT_MSAA_SHADER_2D_MULTISAMPLE_COPY;
else {
shader_index = BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE +
shader_offset;
}
}
if (target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY) {
shader_index += (BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_RESOLVE -
BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE);
sampler_array_suffix = "Array";
texcoord_type = "vec3";
}
break;
default:
_mesa_problem(ctx, "Unkown texture target %s\n",
_mesa_enum_to_string(target));
shader_index = BLIT_2X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE;
}
/* We rely on the enum being sorted this way. */
STATIC_ASSERT(BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE_INT ==
BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE + 5);
STATIC_ASSERT(BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE_UINT ==
BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE + 10);
if (src_datatype == GL_INT) {
shader_index += 5;
vec4_prefix = "i";
} else if (src_datatype == GL_UNSIGNED_INT) {
shader_index += 10;
vec4_prefix = "u";
} else {
vec4_prefix = "";
}
if (blit->msaa_shaders[shader_index]) {
_mesa_UseProgram(blit->msaa_shaders[shader_index]);
return;
}
mem_ctx = ralloc_context(NULL);
if (shader_index == BLIT_MSAA_SHADER_2D_MULTISAMPLE_DEPTH_RESOLVE ||
shader_index == BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_DEPTH_RESOLVE ||
shader_index == BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_DEPTH_COPY ||
shader_index == BLIT_MSAA_SHADER_2D_MULTISAMPLE_DEPTH_COPY) {
char *sample_index;
const char *arb_sample_shading_extension_string;
if (dst_is_msaa) {
arb_sample_shading_extension_string = "#extension GL_ARB_sample_shading : enable";
sample_index = "gl_SampleID";
name = "depth MSAA copy";
} else {
/* Don't need that extension, since we're drawing to a single-sampled
* destination.
*/
arb_sample_shading_extension_string = "";
/* From the GL 4.3 spec:
*
* "If there is a multisample buffer (the value of SAMPLE_BUFFERS
* is one), then values are obtained from the depth samples in
* this buffer. It is recommended that the depth value of the
* centermost sample be used, though implementations may choose
* any function of the depth sample values at each pixel.
*
* We're slacking and instead of choosing centermost, we've got 0.
*/
sample_index = "0";
name = "depth MSAA resolve";
}
vs_source = ralloc_asprintf(mem_ctx,
"#version 130\n"
"in vec2 position;\n"
"in %s textureCoords;\n"
"out %s texCoords;\n"
"void main()\n"
"{\n"
" texCoords = textureCoords;\n"
" gl_Position = vec4(position, 0.0, 1.0);\n"
"}\n",
texcoord_type,
texcoord_type);
fs_source = ralloc_asprintf(mem_ctx,
"#version 130\n"
"#extension GL_ARB_texture_multisample : enable\n"
"%s\n"
"uniform sampler2DMS%s texSampler;\n"
"in %s texCoords;\n"
"out vec4 out_color;\n"
"\n"
"void main()\n"
"{\n"
" gl_FragDepth = texelFetch(texSampler, i%s(texCoords), %s).r;\n"
"}\n",
arb_sample_shading_extension_string,
sampler_array_suffix,
texcoord_type,
texcoord_type,
sample_index);
} else {
/* You can create 2D_MULTISAMPLE textures with 0 sample count (meaning 1
* sample). Yes, this is ridiculous.
*/
char *sample_resolve;
const char *arb_sample_shading_extension_string;
const char *merge_function;
name = ralloc_asprintf(mem_ctx, "%svec4 MSAA %s",
vec4_prefix,
dst_is_msaa ? "copy" : "resolve");
if (dst_is_msaa) {
arb_sample_shading_extension_string = "#extension GL_ARB_sample_shading : enable";
sample_resolve = ralloc_asprintf(mem_ctx, " out_color = texelFetch(texSampler, i%s(texCoords), gl_SampleID);", texcoord_type);
merge_function = "";
} else {
int i;
int step;
if (src_datatype == GL_INT || src_datatype == GL_UNSIGNED_INT) {
merge_function =
"gvec4 merge(gvec4 a, gvec4 b) { return (a >> gvec4(1)) + (b >> gvec4(1)) + (a & b & gvec4(1)); }\n";
} else {
/* The divide will happen at the end for floats. */
merge_function =
"vec4 merge(vec4 a, vec4 b) { return (a + b); }\n";
}
arb_sample_shading_extension_string = "";
/* We're assuming power of two samples for this resolution procedure.
*
* To avoid losing any floating point precision if the samples all
* happen to have the same value, we merge pairs of values at a time
* (so the floating point exponent just gets increased), rather than
* doing a naive sum and dividing.
*/
assert(_mesa_is_pow_two(samples));
/* Fetch each individual sample. */
sample_resolve = rzalloc_size(mem_ctx, 1);
for (i = 0; i < samples; i++) {
ralloc_asprintf_append(&sample_resolve,
" gvec4 sample_1_%d = texelFetch(texSampler, i%s(texCoords), %d);\n",
i, texcoord_type, i);
}
/* Now, merge each pair of samples, then merge each pair of those,
* etc.
*/
for (step = 2; step <= samples; step *= 2) {
for (i = 0; i < samples; i += step) {
ralloc_asprintf_append(&sample_resolve,
" gvec4 sample_%d_%d = merge(sample_%d_%d, sample_%d_%d);\n",
step, i,
step / 2, i,
step / 2, i + step / 2);
}
}
/* Scale the final result. */
if (src_datatype == GL_UNSIGNED_INT || src_datatype == GL_INT) {
ralloc_asprintf_append(&sample_resolve,
" out_color = sample_%d_0;\n",
samples);
} else {
ralloc_asprintf_append(&sample_resolve,
" gl_FragColor = sample_%d_0 / %f;\n",
samples, (float)samples);
}
}
vs_source = ralloc_asprintf(mem_ctx,
"#version 130\n"
"in vec2 position;\n"
"in %s textureCoords;\n"
"out %s texCoords;\n"
"void main()\n"
"{\n"
" texCoords = textureCoords;\n"
" gl_Position = vec4(position, 0.0, 1.0);\n"
"}\n",
texcoord_type,
texcoord_type);
fs_source = ralloc_asprintf(mem_ctx,
"#version 130\n"
"#extension GL_ARB_texture_multisample : enable\n"
"%s\n"
"#define gvec4 %svec4\n"
"uniform %ssampler2DMS%s texSampler;\n"
"in %s texCoords;\n"
"out gvec4 out_color;\n"
"\n"
"%s" /* merge_function */
"void main()\n"
"{\n"
"%s\n" /* sample_resolve */
"}\n",
arb_sample_shading_extension_string,
vec4_prefix,
vec4_prefix,
sampler_array_suffix,
texcoord_type,
merge_function,
sample_resolve);
}
_mesa_meta_compile_and_link_program(ctx, vs_source, fs_source, name,
&blit->msaa_shaders[shader_index]);
ralloc_free(mem_ctx);
}
/**
* Called via ctx->Driver.GenerateMipmap()
* Note: We don't yet support 3D textures, 1D/2D array textures or texture
* borders.
*/
void
_mesa_meta_GenerateMipmap(struct gl_context *ctx, GLenum target,
struct gl_texture_object *texObj)
{
struct gen_mipmap_state *mipmap = &ctx->Meta->Mipmap;
struct vertex verts[4];
const GLuint baseLevel = texObj->BaseLevel;
const GLuint maxLevel = texObj->MaxLevel;
const GLint maxLevelSave = texObj->MaxLevel;
const GLboolean genMipmapSave = texObj->GenerateMipmap;
const GLuint currentTexUnitSave = ctx->Texture.CurrentUnit;
const GLboolean use_glsl_version = ctx->Extensions.ARB_vertex_shader &&
ctx->Extensions.ARB_fragment_shader;
GLenum faceTarget;
GLuint dstLevel;
GLuint samplerSave;
GLint swizzle[4];
GLboolean swizzleSaved = GL_FALSE;
if (fallback_required(ctx, target, texObj)) {
_mesa_generate_mipmap(ctx, target, texObj);
return;
}
if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z) {
faceTarget = target;
target = GL_TEXTURE_CUBE_MAP;
} else {
faceTarget = target;
}
_mesa_meta_begin(ctx, MESA_META_ALL & ~MESA_META_DRAW_BUFFERS);
/* Choose between glsl version and fixed function version of
* GenerateMipmap function.
*/
if (use_glsl_version) {
_mesa_meta_setup_vertex_objects(&mipmap->VAO, &mipmap->VBO, true,
2, 4, 0);
_mesa_meta_setup_blit_shader(ctx, target, false, &mipmap->shaders);
} else {
_mesa_meta_setup_ff_tnl_for_blit(&mipmap->VAO, &mipmap->VBO, 3);
_mesa_set_enable(ctx, target, GL_TRUE);
}
samplerSave = ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler ?
ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler->Name : 0;
if (currentTexUnitSave != 0)
glBindTexture(target, texObj->Name);
if (!mipmap->Sampler) {
glGenSamplers(1, &mipmap->Sampler);
glBindSampler(ctx->Texture.CurrentUnit, mipmap->Sampler);
glSamplerParameteri(mipmap->Sampler,
GL_TEXTURE_MIN_FILTER,
GL_LINEAR_MIPMAP_LINEAR);
glSamplerParameteri(mipmap->Sampler, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glSamplerParameteri(mipmap->Sampler, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glSamplerParameteri(mipmap->Sampler, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glSamplerParameteri(mipmap->Sampler, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
/* We don't want to encode or decode sRGB values; treat them as linear.
* This is not technically correct for GLES3 but we don't get any API
* error at the moment.
*/
if (ctx->Extensions.EXT_texture_sRGB_decode) {
glSamplerParameteri(mipmap->Sampler, GL_TEXTURE_SRGB_DECODE_EXT,
GL_SKIP_DECODE_EXT);
}
} else {
glBindSampler(ctx->Texture.CurrentUnit, mipmap->Sampler);
}
assert(mipmap->FBO != 0);
glBindFramebuffer(GL_FRAMEBUFFER, mipmap->FBO);
glTexParameteri(target, GL_GENERATE_MIPMAP, GL_FALSE);
// if (texObj->_Swizzle != SWIZZLE_NOOP) {
// static const GLint swizzleNoop[4] = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA };
// memcpy(swizzle, texObj->Swizzle, sizeof(swizzle));
// swizzleSaved = GL_TRUE;
// glTexParameteriv(target, GL_TEXTURE_SWIZZLE_RGBA, swizzleNoop);
// }
/* Silence valgrind warnings about reading uninitialized stack. */
memset(verts, 0, sizeof(verts));
/* setup vertex positions */
verts[0].x = -1.0F;
verts[0].y = -1.0F;
verts[1].x = 1.0F;
verts[1].y = -1.0F;
verts[2].x = 1.0F;
verts[2].y = 1.0F;
verts[3].x = -1.0F;
verts[3].y = 1.0F;
/* texture is already locked, unlock now */
_mesa_unlock_texture(ctx, texObj);
for (dstLevel = baseLevel + 1; dstLevel <= maxLevel; dstLevel++) {
const struct gl_texture_image *srcImage;
struct gl_texture_image *dstImage;
const GLuint srcLevel = dstLevel - 1;
GLuint layer;
GLsizei srcWidth, srcHeight, srcDepth;
GLsizei dstWidth, dstHeight, dstDepth;
srcImage = _mesa_select_tex_image(texObj, faceTarget, srcLevel);
assert(srcImage->Border == 0);
/* src size */
srcWidth = srcImage->Width;
if (target == GL_TEXTURE_1D_ARRAY) {
srcHeight = 1;
srcDepth = srcImage->Height;
} else {
srcHeight = srcImage->Height;
srcDepth = srcImage->Depth;
}
/* new dst size */
dstWidth = minify(srcWidth, 1);
dstHeight = minify(srcHeight, 1);
// dstDepth = target == GL_TEXTURE_3D ? minify(srcDepth, 1) : srcDepth;
dstDepth = srcDepth;
if (dstWidth == srcWidth &&
dstHeight == srcHeight &&
dstDepth == srcDepth) {
/* all done */
break;
}
/* Allocate storage for the destination mipmap image(s) */
/* Set MaxLevel large enough to hold the new level when we allocate it */
glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, dstLevel);
if (!prepare_mipmap_level(ctx, texObj, dstLevel,
dstWidth, dstHeight, dstDepth,
srcImage->InternalFormat,
srcImage->TexFormat)) {
/* All done. We either ran out of memory or we would go beyond the
* last valid level of an immutable texture if we continued.
*/
break;
}
dstImage = _mesa_select_tex_image(texObj, faceTarget, dstLevel);
/* limit minification to src level */
glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, srcLevel);
/* setup viewport */
_mesa_set_viewport(ctx, 0, 0, 0, dstWidth, dstHeight);
glDrawBuffer(GL_COLOR_ATTACHMENT0);
for (layer = 0; layer < dstDepth; ++layer) {
/* Setup texture coordinates */
_mesa_meta_setup_texture_coords(faceTarget,
layer,
0, 0, 1, /* width, height never used here */
verts[0].tex,
verts[1].tex,
verts[2].tex,
verts[3].tex);
/* upload vertex data */
glBufferData(GL_ARRAY_BUFFER, sizeof(verts),
verts, GL_DYNAMIC_DRAW);
_mesa_meta_bind_fbo_image(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, dstImage, layer);
/* sanity check */
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) !=
GL_FRAMEBUFFER_COMPLETE) {
_mesa_problem(ctx, "Unexpected incomplete framebuffer in "
"_mesa_meta_GenerateMipmap()");
break;
}
assert(dstWidth == ctx->DrawBuffer->Width);
if (target == GL_TEXTURE_1D_ARRAY) {
assert(dstHeight == 1);
} else {
assert(dstHeight == ctx->DrawBuffer->Height);
}
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
}
}
_mesa_lock_texture(ctx, texObj); /* relock */
glBindSampler(ctx->Texture.CurrentUnit, samplerSave);
_mesa_meta_end(ctx);
glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, maxLevelSave);
if (genMipmapSave)
glTexParameteri(target, GL_GENERATE_MIPMAP, genMipmapSave);
// if (swizzleSaved)
// glTexParameteriv(target, GL_TEXTURE_SWIZZLE_RGBA, swizzle);
}
/**
* Called via ctx->Driver.GenerateMipmap()
* Note: We don't yet support 3D textures, or texture borders.
*/
void
_mesa_meta_GenerateMipmap(struct gl_context *ctx, GLenum target,
struct gl_texture_object *texObj)
{
struct gen_mipmap_state *mipmap = &ctx->Meta->Mipmap;
struct vertex verts[4];
const GLuint baseLevel = texObj->BaseLevel;
const GLuint maxLevel = texObj->MaxLevel;
const GLint maxLevelSave = texObj->MaxLevel;
const GLboolean genMipmapSave = texObj->GenerateMipmap;
const GLboolean use_glsl_version = ctx->Extensions.ARB_vertex_shader &&
ctx->Extensions.ARB_fragment_shader;
GLenum faceTarget;
GLuint dstLevel;
struct gl_sampler_object *samp_obj_save = NULL;
GLint swizzle[4];
GLboolean swizzleSaved = GL_FALSE;
/* GLint so the compiler won't complain about type signedness mismatch in
* the calls to _mesa_texture_parameteriv below.
*/
static const GLint always_false = GL_FALSE;
static const GLint always_true = GL_TRUE;
if (fallback_required(ctx, target, texObj)) {
_mesa_generate_mipmap(ctx, target, texObj);
return;
}
if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z) {
faceTarget = target;
target = GL_TEXTURE_CUBE_MAP;
} else {
faceTarget = target;
}
_mesa_meta_begin(ctx, MESA_META_ALL & ~MESA_META_DRAW_BUFFERS);
_mesa_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
/* Choose between glsl version and fixed function version of
* GenerateMipmap function.
*/
if (use_glsl_version) {
_mesa_meta_setup_vertex_objects(ctx, &mipmap->VAO, &mipmap->buf_obj, true,
2, 4, 0);
_mesa_meta_setup_blit_shader(ctx, target, false, &mipmap->shaders);
} else {
_mesa_meta_setup_ff_tnl_for_blit(ctx, &mipmap->VAO, &mipmap->buf_obj, 3);
_mesa_set_enable(ctx, target, GL_TRUE);
}
_mesa_reference_sampler_object(ctx, &samp_obj_save,
ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler);
/* We may have been called from glGenerateTextureMipmap with CurrentUnit
* still set to 0, so we don't know when we can skip binding the texture.
* Assume that _mesa_BindTexture will be fast if we're rebinding the same
* texture.
*/
_mesa_BindTexture(target, texObj->Name);
if (mipmap->samp_obj == NULL) {
mipmap->samp_obj = ctx->Driver.NewSamplerObject(ctx, 0xDEADBEEF);
if (mipmap->samp_obj == NULL) {
/* This is a bit lazy. Flag out of memory, and then don't bother to
* clean up. Once out of memory is flagged, the only realistic next
* move is to destroy the context. That will trigger all the right
* clean up.
*/
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenerateMipmap");
return;
}
_mesa_set_sampler_filters(ctx, mipmap->samp_obj, GL_LINEAR_MIPMAP_LINEAR,
GL_LINEAR);
_mesa_set_sampler_wrap(ctx, mipmap->samp_obj, GL_CLAMP_TO_EDGE,
GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE);
/* We don't want to encode or decode sRGB values; treat them as linear. */
_mesa_set_sampler_srgb_decode(ctx, mipmap->samp_obj, GL_SKIP_DECODE_EXT);
}
_mesa_bind_sampler(ctx, ctx->Texture.CurrentUnit, mipmap->samp_obj);
assert(mipmap->fb != NULL);
_mesa_bind_framebuffers(ctx, mipmap->fb, mipmap->fb);
_mesa_texture_parameteriv(ctx, texObj, GL_GENERATE_MIPMAP, &always_false, false);
if (texObj->_Swizzle != SWIZZLE_NOOP) {
static const GLint swizzleNoop[4] = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA };
memcpy(swizzle, texObj->Swizzle, sizeof(swizzle));
swizzleSaved = GL_TRUE;
_mesa_texture_parameteriv(ctx, texObj, GL_TEXTURE_SWIZZLE_RGBA,
swizzleNoop, false);
}
/* Silence valgrind warnings about reading uninitialized stack. */
memset(verts, 0, sizeof(verts));
/* setup vertex positions */
verts[0].x = -1.0F;
verts[0].y = -1.0F;
verts[1].x = 1.0F;
verts[1].y = -1.0F;
verts[2].x = 1.0F;
verts[2].y = 1.0F;
verts[3].x = -1.0F;
verts[3].y = 1.0F;
/* texture is already locked, unlock now */
_mesa_unlock_texture(ctx, texObj);
_mesa_prepare_mipmap_levels(ctx, texObj, baseLevel, maxLevel);
for (dstLevel = baseLevel + 1; dstLevel <= maxLevel; dstLevel++) {
const struct gl_texture_image *srcImage;
struct gl_texture_image *dstImage;
const GLuint srcLevel = dstLevel - 1;
GLuint layer;
GLsizei srcWidth, srcHeight, srcDepth;
GLsizei dstWidth, dstHeight, dstDepth;
srcImage = _mesa_select_tex_image(texObj, faceTarget, srcLevel);
assert(srcImage->Border == 0);
/* src size */
srcWidth = srcImage->Width;
if (target == GL_TEXTURE_1D_ARRAY) {
srcHeight = 1;
srcDepth = srcImage->Height;
} else {
srcHeight = srcImage->Height;
srcDepth = srcImage->Depth;
}
/* new dst size */
dstWidth = minify(srcWidth, 1);
dstHeight = minify(srcHeight, 1);
dstDepth = target == GL_TEXTURE_3D ? minify(srcDepth, 1) : srcDepth;
if (dstWidth == srcWidth &&
dstHeight == srcHeight &&
dstDepth == srcDepth) {
/* all done */
break;
}
/* Allocate storage for the destination mipmap image(s) */
/* Set MaxLevel large enough to hold the new level when we allocate it */
_mesa_texture_parameteriv(ctx, texObj, GL_TEXTURE_MAX_LEVEL,
(GLint *) &dstLevel, false);
dstImage = _mesa_select_tex_image(texObj, faceTarget, dstLevel);
/* All done. We either ran out of memory or we would go beyond the last
* valid level of an immutable texture if we continued.
*/
if (dstImage == NULL)
break;
/* limit minification to src level */
_mesa_texture_parameteriv(ctx, texObj, GL_TEXTURE_MAX_LEVEL,
(GLint *) &srcLevel, false);
/* setup viewport */
_mesa_set_viewport(ctx, 0, 0, 0, dstWidth, dstHeight);
_mesa_DrawBuffer(GL_COLOR_ATTACHMENT0);
for (layer = 0; layer < dstDepth; ++layer) {
/* Setup texture coordinates */
_mesa_meta_setup_texture_coords(faceTarget,
layer,
0, 0, /* xoffset, yoffset */
srcWidth, srcHeight, /* img size */
srcWidth, srcHeight, srcDepth,
verts[0].tex,
verts[1].tex,
verts[2].tex,
verts[3].tex);
/* upload vertex data */
_mesa_buffer_data(ctx, mipmap->buf_obj, GL_NONE, sizeof(verts), verts,
GL_DYNAMIC_DRAW, __func__);
_mesa_meta_framebuffer_texture_image(ctx, ctx->DrawBuffer,
GL_COLOR_ATTACHMENT0, dstImage,
layer);
/* sanity check */
if (_mesa_check_framebuffer_status(ctx, ctx->DrawBuffer) !=
GL_FRAMEBUFFER_COMPLETE) {
_mesa_problem(ctx, "Unexpected incomplete framebuffer in "
"_mesa_meta_GenerateMipmap()");
break;
}
assert(dstWidth == ctx->DrawBuffer->Width);
if (target == GL_TEXTURE_1D_ARRAY) {
assert(dstHeight == 1);
} else {
assert(dstHeight == ctx->DrawBuffer->Height);
}
_mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
}
}
_mesa_lock_texture(ctx, texObj); /* relock */
_mesa_bind_sampler(ctx, ctx->Texture.CurrentUnit, samp_obj_save);
_mesa_reference_sampler_object(ctx, &samp_obj_save, NULL);
_mesa_meta_end(ctx);
_mesa_texture_parameteriv(ctx, texObj, GL_TEXTURE_MAX_LEVEL, &maxLevelSave,
false);
if (genMipmapSave)
_mesa_texture_parameteriv(ctx, texObj, GL_GENERATE_MIPMAP, &always_true,
false);
if (swizzleSaved)
_mesa_texture_parameteriv(ctx, texObj, GL_TEXTURE_SWIZZLE_RGBA, swizzle,
false);
}
/*
* This function is kind of long just because we have to call a lot
* of device driver functions to update device driver state.
*
* XXX As it is now, most of the pop-code calls immediate-mode Mesa functions
* in order to restore GL state. This isn't terribly efficient but it
* ensures that dirty flags and any derived state gets updated correctly.
* We could at least check if the value to restore equals the current value
* and then skip the Mesa call.
*/
void
_mesa_PopAttrib(void)
{
struct gl_attrib_node *attr, *next;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (ctx->AttribStackDepth == 0) {
_mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" );
return;
}
ctx->AttribStackDepth--;
attr = ctx->AttribStack[ctx->AttribStackDepth];
while (attr) {
if (MESA_VERBOSE&VERBOSE_API) {
fprintf(stderr, "glPopAttrib %s\n",
_mesa_lookup_enum_by_nr(attr->kind));
}
switch (attr->kind) {
case GL_ACCUM_BUFFER_BIT:
{
const struct gl_accum_attrib *accum;
accum = (const struct gl_accum_attrib *) attr->data;
_mesa_ClearAccum(accum->ClearColor[0],
accum->ClearColor[1],
accum->ClearColor[2],
accum->ClearColor[3]);
}
break;
case GL_COLOR_BUFFER_BIT:
{
const struct gl_colorbuffer_attrib *color;
color = (const struct gl_colorbuffer_attrib *) attr->data;
_mesa_ClearIndex((GLfloat) color->ClearIndex);
_mesa_ClearColor(CHAN_TO_FLOAT(color->ClearColor[0]),
CHAN_TO_FLOAT(color->ClearColor[1]),
CHAN_TO_FLOAT(color->ClearColor[2]),
CHAN_TO_FLOAT(color->ClearColor[3]));
_mesa_IndexMask(color->IndexMask);
_mesa_ColorMask((GLboolean) (color->ColorMask[0] != 0),
(GLboolean) (color->ColorMask[1] != 0),
(GLboolean) (color->ColorMask[2] != 0),
(GLboolean) (color->ColorMask[3] != 0));
_mesa_DrawBuffer(color->DrawBuffer);
_mesa_set_enable(ctx, GL_ALPHA_TEST, color->AlphaEnabled);
_mesa_AlphaFunc(color->AlphaFunc,
CHAN_TO_FLOAT(color->AlphaRef));
_mesa_set_enable(ctx, GL_BLEND, color->BlendEnabled);
_mesa_BlendFuncSeparateEXT(color->BlendSrcRGB,
color->BlendDstRGB,
color->BlendSrcA,
color->BlendDstA);
_mesa_BlendEquation(color->BlendEquation);
_mesa_BlendColor(color->BlendColor[0],
color->BlendColor[1],
color->BlendColor[2],
color->BlendColor[3]);
_mesa_LogicOp(color->LogicOp);
_mesa_set_enable(ctx, GL_COLOR_LOGIC_OP,
color->ColorLogicOpEnabled);
_mesa_set_enable(ctx, GL_INDEX_LOGIC_OP,
color->IndexLogicOpEnabled);
_mesa_set_enable(ctx, GL_DITHER, color->DitherFlag);
}
break;
case GL_CURRENT_BIT:
FLUSH_CURRENT( ctx, 0 );
MEMCPY( &ctx->Current, attr->data,
sizeof(struct gl_current_attrib) );
break;
case GL_DEPTH_BUFFER_BIT:
{
const struct gl_depthbuffer_attrib *depth;
depth = (const struct gl_depthbuffer_attrib *) attr->data;
_mesa_DepthFunc(depth->Func);
_mesa_ClearDepth(depth->Clear);
_mesa_set_enable(ctx, GL_DEPTH_TEST, depth->Test);
_mesa_DepthMask(depth->Mask);
if (ctx->Extensions.HP_occlusion_test)
_mesa_set_enable(ctx, GL_OCCLUSION_TEST_HP,
depth->OcclusionTest);
}
break;
case GL_ENABLE_BIT:
{
const struct gl_enable_attrib *enable;
enable = (const struct gl_enable_attrib *) attr->data;
pop_enable_group(ctx, enable);
ctx->NewState |= _NEW_ALL;
}
break;
case GL_EVAL_BIT:
MEMCPY( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) );
ctx->NewState |= _NEW_EVAL;
break;
case GL_FOG_BIT:
{
const struct gl_fog_attrib *fog;
fog = (const struct gl_fog_attrib *) attr->data;
_mesa_set_enable(ctx, GL_FOG, fog->Enabled);
_mesa_Fogfv(GL_FOG_COLOR, fog->Color);
_mesa_Fogf(GL_FOG_DENSITY, fog->Density);
_mesa_Fogf(GL_FOG_START, fog->Start);
_mesa_Fogf(GL_FOG_END, fog->End);
_mesa_Fogf(GL_FOG_INDEX, fog->Index);
_mesa_Fogi(GL_FOG_MODE, fog->Mode);
}
break;
case GL_HINT_BIT:
{
const struct gl_hint_attrib *hint;
hint = (const struct gl_hint_attrib *) attr->data;
_mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT,
hint->PerspectiveCorrection );
_mesa_Hint(GL_POINT_SMOOTH_HINT, hint->PointSmooth);
_mesa_Hint(GL_LINE_SMOOTH_HINT, hint->LineSmooth);
_mesa_Hint(GL_POLYGON_SMOOTH_HINT, hint->PolygonSmooth);
_mesa_Hint(GL_FOG_HINT, hint->Fog);
_mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT,
hint->ClipVolumeClipping);
if (ctx->Extensions.ARB_texture_compression)
_mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB,
hint->TextureCompression);
}
break;
case GL_LIGHTING_BIT:
{
GLuint i;
const struct gl_light_attrib *light;
light = (const struct gl_light_attrib *) attr->data;
/* lighting enable */
_mesa_set_enable(ctx, GL_LIGHTING, light->Enabled);
/* per-light state */
if (ctx->ModelView.flags & MAT_DIRTY_INVERSE)
_math_matrix_analyse( &ctx->ModelView );
for (i = 0; i < MAX_LIGHTS; i++) {
GLenum lgt = (GLenum) (GL_LIGHT0 + i);
const struct gl_light *l = &light->Light[i];
GLfloat tmp[4];
_mesa_set_enable(ctx, lgt, l->Enabled);
_mesa_Lightfv( lgt, GL_AMBIENT, l->Ambient );
_mesa_Lightfv( lgt, GL_DIFFUSE, l->Diffuse );
_mesa_Lightfv( lgt, GL_SPECULAR, l->Specular );
TRANSFORM_POINT( tmp, ctx->ModelView.inv, l->EyePosition );
_mesa_Lightfv( lgt, GL_POSITION, tmp );
TRANSFORM_POINT( tmp, ctx->ModelView.m, l->EyeDirection );
_mesa_Lightfv( lgt, GL_SPOT_DIRECTION, tmp );
_mesa_Lightfv( lgt, GL_SPOT_EXPONENT, &l->SpotExponent );
_mesa_Lightfv( lgt, GL_SPOT_CUTOFF, &l->SpotCutoff );
_mesa_Lightfv( lgt, GL_CONSTANT_ATTENUATION,
&l->ConstantAttenuation );
_mesa_Lightfv( lgt, GL_LINEAR_ATTENUATION,
&l->LinearAttenuation );
_mesa_Lightfv( lgt, GL_QUADRATIC_ATTENUATION,
&l->QuadraticAttenuation );
}
/* light model */
_mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT,
light->Model.Ambient);
_mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER,
(GLfloat) light->Model.LocalViewer);
_mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE,
(GLfloat) light->Model.TwoSide);
_mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL,
(GLfloat) light->Model.ColorControl);
/* materials */
MEMCPY(ctx->Light.Material, light->Material,
2 * sizeof(struct gl_material));
/* shade model */
_mesa_ShadeModel(light->ShadeModel);
/* color material */
_mesa_ColorMaterial(light->ColorMaterialFace,
light->ColorMaterialMode);
_mesa_set_enable(ctx, GL_COLOR_MATERIAL,
light->ColorMaterialEnabled);
}
break;
case GL_LINE_BIT:
{
const struct gl_line_attrib *line;
line = (const struct gl_line_attrib *) attr->data;
_mesa_set_enable(ctx, GL_LINE_SMOOTH, line->SmoothFlag);
_mesa_set_enable(ctx, GL_LINE_STIPPLE, line->StippleFlag);
_mesa_LineStipple(line->StippleFactor, line->StipplePattern);
_mesa_LineWidth(line->Width);
}
break;
case GL_LIST_BIT:
MEMCPY( &ctx->List, attr->data, sizeof(struct gl_list_attrib) );
break;
case GL_PIXEL_MODE_BIT:
MEMCPY( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) );
ctx->NewState |= _NEW_PIXEL;
break;
case GL_POINT_BIT:
{
const struct gl_point_attrib *point;
point = (const struct gl_point_attrib *) attr->data;
_mesa_PointSize(point->Size);
_mesa_set_enable(ctx, GL_POINT_SMOOTH, point->SmoothFlag);
if (ctx->Extensions.EXT_point_parameters) {
_mesa_PointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT,
point->Params);
_mesa_PointParameterfEXT(GL_POINT_SIZE_MIN_EXT,
point->MinSize);
_mesa_PointParameterfEXT(GL_POINT_SIZE_MAX_EXT,
point->MaxSize);
_mesa_PointParameterfEXT(GL_POINT_FADE_THRESHOLD_SIZE_EXT,
point->Threshold);
}
}
break;
case GL_POLYGON_BIT:
{
const struct gl_polygon_attrib *polygon;
polygon = (const struct gl_polygon_attrib *) attr->data;
_mesa_CullFace(polygon->CullFaceMode);
_mesa_FrontFace(polygon->FrontFace);
_mesa_PolygonMode(GL_FRONT, polygon->FrontMode);
_mesa_PolygonMode(GL_BACK, polygon->BackMode);
_mesa_PolygonOffset(polygon->OffsetFactor,
polygon->OffsetUnits);
_mesa_set_enable(ctx, GL_POLYGON_SMOOTH, polygon->SmoothFlag);
_mesa_set_enable(ctx, GL_POLYGON_STIPPLE, polygon->StippleFlag);
_mesa_set_enable(ctx, GL_CULL_FACE, polygon->CullFlag);
_mesa_set_enable(ctx, GL_POLYGON_OFFSET_POINT,
polygon->OffsetPoint);
_mesa_set_enable(ctx, GL_POLYGON_OFFSET_LINE,
polygon->OffsetLine);
_mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL,
polygon->OffsetFill);
}
break;
case GL_POLYGON_STIPPLE_BIT:
MEMCPY( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) );
ctx->NewState |= _NEW_POLYGONSTIPPLE;
if (ctx->Driver.PolygonStipple)
ctx->Driver.PolygonStipple( ctx, (const GLubyte *) attr->data );
break;
case GL_SCISSOR_BIT:
{
const struct gl_scissor_attrib *scissor;
scissor = (const struct gl_scissor_attrib *) attr->data;
_mesa_Scissor(scissor->X, scissor->Y,
scissor->Width, scissor->Height);
_mesa_set_enable(ctx, GL_SCISSOR_TEST, scissor->Enabled);
}
break;
case GL_STENCIL_BUFFER_BIT:
{
const struct gl_stencil_attrib *stencil;
stencil = (const struct gl_stencil_attrib *) attr->data;
_mesa_set_enable(ctx, GL_STENCIL_TEST, stencil->Enabled);
_mesa_ClearStencil(stencil->Clear);
_mesa_StencilFunc(stencil->Function, stencil->Ref,
stencil->ValueMask);
_mesa_StencilMask(stencil->WriteMask);
_mesa_StencilOp(stencil->FailFunc, stencil->ZFailFunc,
stencil->ZPassFunc);
}
break;
case GL_TRANSFORM_BIT:
{
GLuint i;
const struct gl_transform_attrib *xform;
xform = (const struct gl_transform_attrib *) attr->data;
_mesa_MatrixMode(xform->MatrixMode);
if (ctx->ProjectionMatrix.flags & MAT_DIRTY)
_math_matrix_analyse( &ctx->ProjectionMatrix );
/* restore clip planes */
for (i = 0; i < MAX_CLIP_PLANES; i++) {
const GLfloat *eyePlane = xform->EyeUserPlane[i];
COPY_4V(ctx->Transform.EyeUserPlane[i], eyePlane);
if (xform->ClipEnabled[i]) {
_mesa_transform_vector( ctx->Transform._ClipUserPlane[i],
eyePlane,
ctx->ProjectionMatrix.inv );
_mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_TRUE );
}
else {
_mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_FALSE );
}
if (ctx->Driver.ClipPlane)
ctx->Driver.ClipPlane( ctx, GL_CLIP_PLANE0 + i, eyePlane );
}
/* normalize/rescale */
_mesa_set_enable(ctx, GL_NORMALIZE, ctx->Transform.Normalize);
_mesa_set_enable(ctx, GL_RESCALE_NORMAL_EXT,
ctx->Transform.RescaleNormals);
}
break;
case GL_TEXTURE_BIT:
/* Take care of texture object reference counters */
{
const struct gl_texture_attrib *texture;
texture = (const struct gl_texture_attrib *) attr->data;
pop_texture_group(ctx, texture);
ctx->NewState |= _NEW_TEXTURE;
}
break;
case GL_VIEWPORT_BIT:
{
const struct gl_viewport_attrib *vp;
vp = (const struct gl_viewport_attrib *) attr->data;
_mesa_Viewport(vp->X, vp->Y, vp->Width, vp->Height);
_mesa_DepthRange(vp->Near, vp->Far);
}
break;
case GL_MULTISAMPLE_BIT_ARB:
{
const struct gl_multisample_attrib *ms;
ms = (const struct gl_multisample_attrib *) attr->data;
_mesa_SampleCoverageARB(ms->SampleCoverageValue,
ms->SampleCoverageInvert);
}
break;
default:
_mesa_problem( ctx, "Bad attrib flag in PopAttrib");
break;
}
next = attr->next;
FREE( attr->data );
FREE( attr );
attr = next;
}
}
static void
pop_texture_group(GLcontext *ctx, const struct gl_texture_attrib *texAttrib)
{
GLuint u;
for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
const struct gl_texture_unit *unit = &texAttrib->Unit[u];
GLuint i;
_mesa_ActiveTextureARB(GL_TEXTURE0_ARB + u);
_mesa_set_enable(ctx, GL_TEXTURE_1D,
(GLboolean) (unit->Enabled & TEXTURE0_1D ? GL_TRUE : GL_FALSE));
_mesa_set_enable(ctx, GL_TEXTURE_2D,
(GLboolean) (unit->Enabled & TEXTURE0_2D ? GL_TRUE : GL_FALSE));
_mesa_set_enable(ctx, GL_TEXTURE_3D,
(GLboolean) (unit->Enabled & TEXTURE0_3D ? GL_TRUE : GL_FALSE));
if (ctx->Extensions.ARB_texture_cube_map) {
_mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP_ARB,
(GLboolean) (unit->Enabled & TEXTURE0_CUBE ? GL_TRUE : GL_FALSE));
}
if (ctx->Extensions.NV_texture_rectangle) {
_mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE_NV,
(GLboolean) (unit->Enabled & TEXTURE0_RECT ? GL_TRUE : GL_FALSE));
}
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->EnvMode);
_mesa_TexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, unit->EnvColor);
_mesa_TexGeni(GL_S, GL_TEXTURE_GEN_MODE, unit->GenModeS);
_mesa_TexGeni(GL_T, GL_TEXTURE_GEN_MODE, unit->GenModeT);
_mesa_TexGeni(GL_R, GL_TEXTURE_GEN_MODE, unit->GenModeR);
_mesa_TexGeni(GL_Q, GL_TEXTURE_GEN_MODE, unit->GenModeQ);
_mesa_TexGenfv(GL_S, GL_OBJECT_PLANE, unit->ObjectPlaneS);
_mesa_TexGenfv(GL_T, GL_OBJECT_PLANE, unit->ObjectPlaneT);
_mesa_TexGenfv(GL_R, GL_OBJECT_PLANE, unit->ObjectPlaneR);
_mesa_TexGenfv(GL_Q, GL_OBJECT_PLANE, unit->ObjectPlaneQ);
_mesa_TexGenfv(GL_S, GL_EYE_PLANE, unit->EyePlaneS);
_mesa_TexGenfv(GL_T, GL_EYE_PLANE, unit->EyePlaneT);
_mesa_TexGenfv(GL_R, GL_EYE_PLANE, unit->EyePlaneR);
_mesa_TexGenfv(GL_Q, GL_EYE_PLANE, unit->EyePlaneQ);
if (ctx->Extensions.EXT_texture_lod_bias) {
_mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
GL_TEXTURE_LOD_BIAS_EXT, unit->LodBias);
}
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT,
unit->CombineModeRGB);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_EXT,
unit->CombineModeA);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_EXT,
unit->CombineSourceRGB[0]);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_EXT,
unit->CombineSourceRGB[1]);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_EXT,
unit->CombineSourceRGB[2]);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_EXT,
unit->CombineSourceA[0]);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_EXT,
unit->CombineSourceA[1]);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA_EXT,
unit->CombineSourceA[2]);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_EXT,
unit->CombineOperandRGB[0]);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_EXT,
unit->CombineOperandRGB[1]);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB_EXT,
unit->CombineOperandRGB[2]);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_EXT,
unit->CombineOperandA[0]);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_EXT,
unit->CombineOperandA[1]);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA_EXT,
unit->CombineOperandA[2]);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_EXT,
1 << unit->CombineScaleShiftRGB);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE,
1 << unit->CombineScaleShiftA);
}
/* Restore texture object state */
for (i = 0; i < NUM_TEXTURE_TARGETS; i++) {
GLenum target = 0;
const struct gl_texture_object *obj = NULL;
GLfloat bordColor[4];
switch (i) {
case 0:
target = GL_TEXTURE_1D;
obj = &unit->Saved1D;
break;
case 1:
target = GL_TEXTURE_2D;
obj = &unit->Saved2D;
break;
case 2:
target = GL_TEXTURE_3D;
obj = &unit->Saved3D;
break;
case 3:
if (!ctx->Extensions.ARB_texture_cube_map)
continue;
target = GL_TEXTURE_CUBE_MAP_ARB;
obj = &unit->SavedCubeMap;
break;
case 4:
if (!ctx->Extensions.NV_texture_rectangle)
continue;
target = GL_TEXTURE_RECTANGLE_NV;
obj = &unit->SavedRect;
break;
default:
; /* silence warnings */
}
_mesa_BindTexture(target, obj->Name);
bordColor[0] = CHAN_TO_FLOAT(obj->BorderColor[0]);
bordColor[1] = CHAN_TO_FLOAT(obj->BorderColor[1]);
bordColor[2] = CHAN_TO_FLOAT(obj->BorderColor[2]);
bordColor[3] = CHAN_TO_FLOAT(obj->BorderColor[3]);
_mesa_TexParameterf(target, GL_TEXTURE_PRIORITY, obj->Priority);
_mesa_TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, bordColor);
_mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, obj->WrapS);
_mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, obj->WrapT);
_mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, obj->WrapR);
_mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, obj->MinFilter);
_mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, obj->MagFilter);
_mesa_TexParameterf(target, GL_TEXTURE_MIN_LOD, obj->MinLod);
_mesa_TexParameterf(target, GL_TEXTURE_MAX_LOD, obj->MaxLod);
_mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, obj->BaseLevel);
_mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, obj->MaxLevel);
if (ctx->Extensions.EXT_texture_filter_anisotropic) {
_mesa_TexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT,
obj->MaxAnisotropy);
}
if (ctx->Extensions.SGIX_shadow) {
_mesa_TexParameteri(target, GL_TEXTURE_COMPARE_SGIX,
obj->CompareFlag);
_mesa_TexParameteri(target, GL_TEXTURE_COMPARE_OPERATOR_SGIX,
obj->CompareOperator);
}
if (ctx->Extensions.SGIX_shadow_ambient) {
_mesa_TexParameterf(target, GL_SHADOW_AMBIENT_SGIX,
CHAN_TO_FLOAT(obj->ShadowAmbient));
}
}
}
_mesa_ActiveTextureARB(GL_TEXTURE0_ARB
+ texAttrib->CurrentUnit);
/* "un-bump" the texture object reference counts. We did that so they
* wouldn't inadvertantly get deleted while they were still referenced
* inside the attribute state stack.
*/
for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
ctx->Texture.Unit[u].Current1D->RefCount--;
ctx->Texture.Unit[u].Current2D->RefCount--;
ctx->Texture.Unit[u].Current3D->RefCount--;
ctx->Texture.Unit[u].CurrentCubeMap->RefCount--;
ctx->Texture.Unit[u].CurrentRect->RefCount--;
}
}
static void
pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable)
{
GLuint i;
#define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM) \
if ((VALUE) != (NEWVALUE)) { \
_mesa_set_enable( ctx, ENUM, (NEWVALUE) ); \
}
TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST);
TEST_AND_UPDATE(ctx->Color.BlendEnabled, enable->Blend, GL_BLEND);
for (i=0;i<MAX_CLIP_PLANES;i++) {
if (ctx->Transform.ClipEnabled[i] != enable->ClipPlane[i])
_mesa_set_enable(ctx, (GLenum) (GL_CLIP_PLANE0 + i),
enable->ClipPlane[i]);
}
TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial,
GL_COLOR_MATERIAL);
TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE);
TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST);
TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER);
TEST_AND_UPDATE(ctx->Pixel.Convolution1DEnabled, enable->Convolution1D,
GL_CONVOLUTION_1D);
TEST_AND_UPDATE(ctx->Pixel.Convolution2DEnabled, enable->Convolution2D,
GL_CONVOLUTION_2D);
TEST_AND_UPDATE(ctx->Pixel.Separable2DEnabled, enable->Separable2D,
GL_SEPARABLE_2D);
TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG);
TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING);
TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH);
TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple,
GL_LINE_STIPPLE);
TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp,
GL_INDEX_LOGIC_OP);
TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp,
GL_COLOR_LOGIC_OP);
TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4);
TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX);
TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL);
TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1,
GL_MAP1_TEXTURE_COORD_1);
TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2,
GL_MAP1_TEXTURE_COORD_2);
TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3,
GL_MAP1_TEXTURE_COORD_3);
TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4,
GL_MAP1_TEXTURE_COORD_4);
TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3,
GL_MAP1_VERTEX_3);
TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4,
GL_MAP1_VERTEX_4);
TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4);
TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX);
TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL);
TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1,
GL_MAP2_TEXTURE_COORD_1);
TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2,
GL_MAP2_TEXTURE_COORD_2);
TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3,
GL_MAP2_TEXTURE_COORD_3);
TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4,
GL_MAP2_TEXTURE_COORD_4);
TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3,
GL_MAP2_VERTEX_3);
TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4,
GL_MAP2_VERTEX_4);
TEST_AND_UPDATE(ctx->Eval.AutoNormal, enable->AutoNormal, GL_AUTO_NORMAL);
TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE);
TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals,
GL_RESCALE_NORMAL_EXT);
TEST_AND_UPDATE(ctx->Transform.RasterPositionUnclipped,
enable->RasterPositionUnclipped,
GL_RASTER_POSITION_UNCLIPPED_IBM);
TEST_AND_UPDATE(ctx->Pixel.PixelTextureEnabled, enable->PixelTexture,
GL_POINT_SMOOTH);
TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth,
GL_POINT_SMOOTH);
TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint,
GL_POLYGON_OFFSET_POINT);
TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine,
GL_POLYGON_OFFSET_LINE);
TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill,
GL_POLYGON_OFFSET_FILL);
TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth,
GL_POLYGON_SMOOTH);
TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple,
GL_POLYGON_STIPPLE);
TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST);
TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST);
TEST_AND_UPDATE(ctx->Multisample.Enabled, enable->MultisampleEnabled,
GL_MULTISAMPLE_ARB);
TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToCoverage,
enable->SampleAlphaToCoverage,
GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToOne,
enable->SampleAlphaToOne,
GL_SAMPLE_ALPHA_TO_ONE_ARB);
TEST_AND_UPDATE(ctx->Multisample.SampleCoverage,
enable->SampleCoverage,
GL_SAMPLE_COVERAGE_ARB);
TEST_AND_UPDATE(ctx->Multisample.SampleCoverageInvert,
enable->SampleCoverageInvert,
GL_SAMPLE_COVERAGE_INVERT_ARB);
#undef TEST_AND_UPDATE
/* texture unit enables */
for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
if (ctx->Texture.Unit[i].Enabled != enable->Texture[i]) {
ctx->Texture.Unit[i].Enabled = enable->Texture[i];
if (ctx->Driver.Enable) {
if (ctx->Driver.ActiveTexture) {
(*ctx->Driver.ActiveTexture)(ctx, i);
}
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D,
(GLboolean) (enable->Texture[i] & TEXTURE0_1D) );
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D,
(GLboolean) (enable->Texture[i] & TEXTURE0_2D) );
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D,
(GLboolean) (enable->Texture[i] & TEXTURE0_3D) );
if (ctx->Extensions.ARB_texture_cube_map)
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_CUBE_MAP_ARB,
(GLboolean) (enable->Texture[i] & TEXTURE0_CUBE) );
if (ctx->Extensions.NV_texture_rectangle)
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_RECTANGLE_NV,
(GLboolean) (enable->Texture[i] & TEXTURE0_RECT) );
}
}
if (ctx->Texture.Unit[i].TexGenEnabled != enable->TexGen[i]) {
ctx->Texture.Unit[i].TexGenEnabled = enable->TexGen[i];
if (ctx->Driver.Enable) {
if (ctx->Driver.ActiveTexture) {
(*ctx->Driver.ActiveTexture)(ctx, i);
}
if (enable->TexGen[i] & S_BIT)
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_TRUE);
else
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_FALSE);
if (enable->TexGen[i] & T_BIT)
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_TRUE);
else
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_FALSE);
if (enable->TexGen[i] & R_BIT)
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_TRUE);
else
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_FALSE);
if (enable->TexGen[i] & Q_BIT)
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_TRUE);
else
(*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_FALSE);
}
}
}
if (ctx->Driver.ActiveTexture) {
(*ctx->Driver.ActiveTexture)(ctx, ctx->Texture.CurrentUnit);
}
}
