/**
* Clear the color buffer when glColorMask is in effect.
*/
static void
clear_rgba_buffer_with_masking(GLcontext *ctx, struct gl_renderbuffer *rb)
{
const GLint x = ctx->DrawBuffer->_Xmin;
const GLint y = ctx->DrawBuffer->_Ymin;
const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
SWspan span;
GLint i;
ASSERT(ctx->Visual.rgbMode);
ASSERT(rb->PutRow);
/* Initialize color span with clear color */
/* XXX optimize for clearcolor == black/zero (bzero) */
INIT_SPAN(span, GL_BITMAP, width, 0, SPAN_RGBA);
span.array->ChanType = rb->DataType;
if (span.array->ChanType == GL_UNSIGNED_BYTE) {
GLubyte clearColor[4];
UNCLAMPED_FLOAT_TO_UBYTE(clearColor[RCOMP], ctx->Color.ClearColor[0]);
UNCLAMPED_FLOAT_TO_UBYTE(clearColor[GCOMP], ctx->Color.ClearColor[1]);
UNCLAMPED_FLOAT_TO_UBYTE(clearColor[BCOMP], ctx->Color.ClearColor[2]);
UNCLAMPED_FLOAT_TO_UBYTE(clearColor[ACOMP], ctx->Color.ClearColor[3]);
for (i = 0; i < width; i++) {
COPY_4UBV(span.array->rgba[i], clearColor);
}
}
else if (span.array->ChanType == GL_UNSIGNED_SHORT) {
GLushort clearColor[4];
UNCLAMPED_FLOAT_TO_USHORT(clearColor[RCOMP], ctx->Color.ClearColor[0]);
UNCLAMPED_FLOAT_TO_USHORT(clearColor[GCOMP], ctx->Color.ClearColor[1]);
UNCLAMPED_FLOAT_TO_USHORT(clearColor[BCOMP], ctx->Color.ClearColor[2]);
UNCLAMPED_FLOAT_TO_USHORT(clearColor[ACOMP], ctx->Color.ClearColor[3]);
for (i = 0; i < width; i++) {
COPY_4V(span.array->rgba[i], clearColor);
}
}
else {
ASSERT(span.array->ChanType == GL_FLOAT);
for (i = 0; i < width; i++) {
CLAMPED_FLOAT_TO_CHAN(span.array->rgba[i][0], ctx->Color.ClearColor[0]);
CLAMPED_FLOAT_TO_CHAN(span.array->rgba[i][1], ctx->Color.ClearColor[1]);
CLAMPED_FLOAT_TO_CHAN(span.array->rgba[i][2], ctx->Color.ClearColor[2]);
CLAMPED_FLOAT_TO_CHAN(span.array->rgba[i][3], ctx->Color.ClearColor[3]);
}
}
/* Note that masking will change the color values, but only the
* channels for which the write mask is GL_FALSE. The channels
* which which are write-enabled won't get modified.
*/
for (i = 0; i < height; i++) {
span.x = x;
span.y = y + i;
_swrast_mask_rgba_span(ctx, rb, &span);
/* write masked row */
rb->PutRow(ctx, rb, width, x, y + i, span.array->rgba, NULL);
}
}
static void radeon_Color4fv_ub( const GLfloat *v )
{
radeon_color_t *dest = vb.colorptr;
UNCLAMPED_FLOAT_TO_UBYTE( dest->red, v[0] );
UNCLAMPED_FLOAT_TO_UBYTE( dest->green, v[1] );
UNCLAMPED_FLOAT_TO_UBYTE( dest->blue, v[2] );
UNCLAMPED_FLOAT_TO_UBYTE( dest->alpha, v[3] );
}
static void radeon_SecondaryColor3fEXT_ub( GLfloat r, GLfloat g, GLfloat b )
{
radeon_color_t *dest = vb.specptr;
UNCLAMPED_FLOAT_TO_UBYTE( dest->red, r );
UNCLAMPED_FLOAT_TO_UBYTE( dest->green, g );
UNCLAMPED_FLOAT_TO_UBYTE( dest->blue, b );
dest->alpha = 255;
}
static void radeon_SecondaryColor3fvEXT_ub( const GLfloat *v )
{
radeon_color_t *dest = vb.specptr;
UNCLAMPED_FLOAT_TO_UBYTE( dest->red, v[0] );
UNCLAMPED_FLOAT_TO_UBYTE( dest->green, v[1] );
UNCLAMPED_FLOAT_TO_UBYTE( dest->blue, v[2] );
dest->alpha = 255;
}
static void insert_3ub_3f_bgr_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
v[0] = 0;
}
static void radeon_Color4f_ub( GLfloat r, GLfloat g, GLfloat b, GLfloat a )
{
radeon_color_t *dest = vb.colorptr;
UNCLAMPED_FLOAT_TO_UBYTE( dest->red, r );
UNCLAMPED_FLOAT_TO_UBYTE( dest->green, g );
UNCLAMPED_FLOAT_TO_UBYTE( dest->blue, b );
UNCLAMPED_FLOAT_TO_UBYTE( dest->alpha, a );
}
static inline void insert_3ub_3f_bgr_3( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]);
}
static void insert_4ub_4f_abgr_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
v[1] = 0x00;
v[0] = 0xff;
}
static void insert_4ub_4f_argb_4( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[2]);
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[3]);
}
static void r200_SecondaryColor3fvEXT_ub( const GLfloat *v )
{
GET_CURRENT_CONTEXT(ctx);
r200ContextPtr rmesa = R200_CONTEXT(ctx);
r200_color_t *dest = rmesa->vb.specptr;
UNCLAMPED_FLOAT_TO_UBYTE( dest->red, v[0] );
UNCLAMPED_FLOAT_TO_UBYTE( dest->green, v[1] );
UNCLAMPED_FLOAT_TO_UBYTE( dest->blue, v[2] );
dest->alpha = 255;
}
static void radeon_Color3f_ub( GLfloat r, GLfloat g, GLfloat b )
{
GET_CURRENT_CONTEXT(ctx);
radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
radeon_color_t *dest = rmesa->vb.colorptr;
UNCLAMPED_FLOAT_TO_UBYTE( dest->red, r );
UNCLAMPED_FLOAT_TO_UBYTE( dest->green, g );
UNCLAMPED_FLOAT_TO_UBYTE( dest->blue, b );
dest->alpha = 255;
}
static void r200_Color4f_ub( GLfloat r, GLfloat g, GLfloat b, GLfloat a )
{
GET_CURRENT_CONTEXT(ctx);
r200ContextPtr rmesa = R200_CONTEXT(ctx);
r200_color_t *dest = rmesa->vb.colorptr;
UNCLAMPED_FLOAT_TO_UBYTE( dest->red, r );
UNCLAMPED_FLOAT_TO_UBYTE( dest->green, g );
UNCLAMPED_FLOAT_TO_UBYTE( dest->blue, b );
UNCLAMPED_FLOAT_TO_UBYTE( dest->alpha, a );
}
static void radeon_Color3fv_ub( const GLfloat *v )
{
GET_CURRENT_CONTEXT(ctx);
radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
radeon_color_t *dest = rmesa->vb.colorptr;
UNCLAMPED_FLOAT_TO_UBYTE( dest->red, v[0] );
UNCLAMPED_FLOAT_TO_UBYTE( dest->green, v[1] );
UNCLAMPED_FLOAT_TO_UBYTE( dest->blue, v[2] );
dest->alpha = 255;
}
static void r200_SecondaryColor3fEXT_ub( GLfloat r, GLfloat g, GLfloat b )
{
GET_CURRENT_CONTEXT(ctx);
r200ContextPtr rmesa = R200_CONTEXT(ctx);
r200_color_t *dest = rmesa->vb.specptr;
UNCLAMPED_FLOAT_TO_UBYTE( dest->red, r );
UNCLAMPED_FLOAT_TO_UBYTE( dest->green, g );
UNCLAMPED_FLOAT_TO_UBYTE( dest->blue, b );
dest->alpha = 255;
}
static void r200_Color4fv_ub( const GLfloat *v )
{
GET_CURRENT_CONTEXT(ctx);
r200ContextPtr rmesa = R200_CONTEXT(ctx);
r200_color_t *dest = rmesa->vb.colorptr;
UNCLAMPED_FLOAT_TO_UBYTE( dest->red, v[0] );
UNCLAMPED_FLOAT_TO_UBYTE( dest->green, v[1] );
UNCLAMPED_FLOAT_TO_UBYTE( dest->blue, v[2] );
UNCLAMPED_FLOAT_TO_UBYTE( dest->alpha, v[3] );
}
static inline void insert_4ub_4f_argb_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
v[3] = 0x00;
v[0] = 0xff;
}
static void gammaDDClearColor( GLcontext *ctx, const GLfloat color[4])
{
gammaContextPtr gmesa = GAMMA_CONTEXT(ctx);
GLubyte c[4];
UNCLAMPED_FLOAT_TO_UBYTE(c[0], color[0]);
UNCLAMPED_FLOAT_TO_UBYTE(c[1], color[1]);
UNCLAMPED_FLOAT_TO_UBYTE(c[2], color[2]);
UNCLAMPED_FLOAT_TO_UBYTE(c[3], color[3]);
gmesa->ClearColor = gammaPackColor( gmesa->gammaScreen->cpp,
c[0], c[1], c[2], c[3] );
if (gmesa->gammaScreen->cpp == 2) gmesa->ClearColor |= gmesa->ClearColor<<16;
}
/**
* Clear an rgba color buffer without channel masking.
*/
static void
clear_rgba_buffer(GLcontext *ctx, struct gl_renderbuffer *rb)
{
const GLint x = ctx->DrawBuffer->_Xmin;
const GLint y = ctx->DrawBuffer->_Ymin;
const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
GLubyte clear8[4];
GLushort clear16[4];
GLvoid *clearVal;
GLint i;
ASSERT(ctx->Visual.rgbMode);
ASSERT(ctx->Color.ColorMask[0] &&
ctx->Color.ColorMask[1] &&
ctx->Color.ColorMask[2] &&
ctx->Color.ColorMask[3]);
ASSERT(rb->PutMonoRow);
switch (rb->DataType) {
case GL_UNSIGNED_BYTE:
UNCLAMPED_FLOAT_TO_UBYTE(clear8[0], ctx->Color.ClearColor[0]);
UNCLAMPED_FLOAT_TO_UBYTE(clear8[1], ctx->Color.ClearColor[1]);
UNCLAMPED_FLOAT_TO_UBYTE(clear8[2], ctx->Color.ClearColor[2]);
UNCLAMPED_FLOAT_TO_UBYTE(clear8[3], ctx->Color.ClearColor[3]);
clearVal = clear8;
break;
case GL_UNSIGNED_SHORT:
UNCLAMPED_FLOAT_TO_USHORT(clear16[0], ctx->Color.ClearColor[0]);
UNCLAMPED_FLOAT_TO_USHORT(clear16[1], ctx->Color.ClearColor[1]);
UNCLAMPED_FLOAT_TO_USHORT(clear16[2], ctx->Color.ClearColor[2]);
UNCLAMPED_FLOAT_TO_USHORT(clear16[3], ctx->Color.ClearColor[3]);
clearVal = clear16;
break;
case GL_FLOAT:
clearVal = ctx->Color.ClearColor;
break;
default:
_mesa_problem(ctx, "Bad rb DataType in clear_color_buffer");
return;
}
for (i = 0; i < height; i++) {
rb->PutMonoRow(ctx, rb, width, x, y + i, clearVal, NULL);
}
}
static void
gen6_prepare_color_calc_state(struct brw_context *brw)
{
struct gl_context *ctx = &brw->intel.ctx;
struct gen6_color_calc_state *cc;
cc = brw_state_batch(brw, AUB_TRACE_CC_STATE,
sizeof(*cc), 64, &brw->cc.state_offset);
memset(cc, 0, sizeof(*cc));
/* _NEW_COLOR */
cc->cc0.alpha_test_format = BRW_ALPHATEST_FORMAT_UNORM8;
UNCLAMPED_FLOAT_TO_UBYTE(cc->cc1.alpha_ref_fi.ui, ctx->Color.AlphaRef);
/* _NEW_STENCIL */
cc->cc0.stencil_ref = ctx->Stencil.Ref[0];
cc->cc0.bf_stencil_ref = ctx->Stencil.Ref[ctx->Stencil._BackFace];
/* _NEW_COLOR */
cc->constant_r = ctx->Color.BlendColorUnclamped[0];
cc->constant_g = ctx->Color.BlendColorUnclamped[1];
cc->constant_b = ctx->Color.BlendColorUnclamped[2];
cc->constant_a = ctx->Color.BlendColorUnclamped[3];
brw->state.dirty.cache |= CACHE_NEW_COLOR_CALC_STATE;
}
void
xmesa_put_tile_rgba(struct pipe_context *pipe, struct pipe_surface *ps,
uint x, uint y, uint w, uint h, const float *p)
{
struct xmesa_surface *xms = xmesa_surface(ps);
struct xmesa_renderbuffer *xrb = xms->xrb;
if (xrb) {
/* this is a front/back color buffer */
GLubyte tmp[MAX_WIDTH * 4];
GLuint i, j;
uint w0 = w;
GET_CURRENT_CONTEXT(ctx);
CLIP_TILE;
FLIP(y);
for (i = 0; i < h; i++) {
for (j = 0; j < w * 4; j++) {
UNCLAMPED_FLOAT_TO_UBYTE(tmp[j], p[j]);
}
xrb->St.Base.PutRow(ctx, &xrb->St.Base, w, x, y - i, tmp, NULL);
p += w0 * 4;
}
#if 0 /* debug: flush */
{
XMesaContext xm = XMESA_CONTEXT(ctx);
XSync(xm->display, 0);
}
#endif
}
else {
/* other softpipe surface */
softpipe_put_tile_rgba(ps, x, y, w, h, p);
}
}
static void i830BlendColor(GLcontext *ctx, const GLfloat color[4])
{
i830ContextPtr i830 = I830_CONTEXT(ctx);
GLubyte r, g, b, a;
if (INTEL_DEBUG&DEBUG_DRI)
fprintf(stderr, "%s\n", __FUNCTION__);
UNCLAMPED_FLOAT_TO_UBYTE(r, color[RCOMP]);
UNCLAMPED_FLOAT_TO_UBYTE(g, color[GCOMP]);
UNCLAMPED_FLOAT_TO_UBYTE(b, color[BCOMP]);
UNCLAMPED_FLOAT_TO_UBYTE(a, color[ACOMP]);
I830_STATECHANGE(i830, I830_UPLOAD_CTX);
i830->state.Ctx[I830_CTXREG_BLENDCOLOR1] = (a<<24) | (r<<16) | (g<<8) | b;
}
static void
i915BlendColor(GLcontext * ctx, const GLfloat color[4])
{
struct i915_context *i915 = I915_CONTEXT(ctx);
GLubyte r, g, b, a;
DBG("%s\n", __FUNCTION__);
UNCLAMPED_FLOAT_TO_UBYTE(r, color[RCOMP]);
UNCLAMPED_FLOAT_TO_UBYTE(g, color[GCOMP]);
UNCLAMPED_FLOAT_TO_UBYTE(b, color[BCOMP]);
UNCLAMPED_FLOAT_TO_UBYTE(a, color[ACOMP]);
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_BLENDCOLOR1] =
(a << 24) | (r << 16) | (g << 8) | b;
}
static void
i830BlendColor(struct gl_context * ctx, const GLfloat color[4])
{
struct i830_context *i830 = i830_context(ctx);
GLubyte r, g, b, a;
DBG("%s\n", __FUNCTION__);
UNCLAMPED_FLOAT_TO_UBYTE(r, color[RCOMP]);
UNCLAMPED_FLOAT_TO_UBYTE(g, color[GCOMP]);
UNCLAMPED_FLOAT_TO_UBYTE(b, color[BCOMP]);
UNCLAMPED_FLOAT_TO_UBYTE(a, color[ACOMP]);
I830_STATECHANGE(i830, I830_UPLOAD_CTX);
i830->state.Ctx[I830_CTXREG_BLENDCOLOR1] =
(a << 24) | (r << 16) | (g << 8) | b;
}
static void
i915BlendColor(struct gl_context * ctx, const GLfloat color[4])
{
struct i915_context *i915 = I915_CONTEXT(ctx);
GLubyte r, g, b, a;
GLuint dw;
DBG("%s\n", __FUNCTION__);
UNCLAMPED_FLOAT_TO_UBYTE(r, color[RCOMP]);
UNCLAMPED_FLOAT_TO_UBYTE(g, color[GCOMP]);
UNCLAMPED_FLOAT_TO_UBYTE(b, color[BCOMP]);
UNCLAMPED_FLOAT_TO_UBYTE(a, color[ACOMP]);
dw = (a << 24) | (r << 16) | (g << 8) | b;
if (dw != i915->state.Blend[I915_BLENDREG_BLENDCOLOR1]) {
i915->state.Blend[I915_BLENDREG_BLENDCOLOR1] = dw;
I915_STATECHANGE(i915, I915_UPLOAD_BLEND);
}
}
static GLuint emit_factor( GLuint blendUnit, GLuint *state, GLuint count,
const GLfloat *factor )
{
GLubyte r, g, b, a;
GLuint col;
if (0)
fprintf(stderr, "emit constant %d: %.2f %.2f %.2f %.2f\n",
blendUnit, factor[0], factor[1], factor[2], factor[3]);
UNCLAMPED_FLOAT_TO_UBYTE(r, factor[0]);
UNCLAMPED_FLOAT_TO_UBYTE(g, factor[1]);
UNCLAMPED_FLOAT_TO_UBYTE(b, factor[2]);
UNCLAMPED_FLOAT_TO_UBYTE(a, factor[3]);
col = ((a << 24) | (r << 16) | (g << 8) | b);
state[count++] = _3DSTATE_COLOR_FACTOR_N_CMD(blendUnit);
state[count++] = col;
return count;
}
static void
i915AlphaFunc(GLcontext * ctx, GLenum func, GLfloat ref)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
int test = intel_translate_compare_func(func);
GLubyte refByte;
UNCLAMPED_FLOAT_TO_UBYTE(refByte, ref);
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_LIS6] &= ~(S6_ALPHA_TEST_FUNC_MASK |
S6_ALPHA_REF_MASK);
i915->state.Ctx[I915_CTXREG_LIS6] |= ((test << S6_ALPHA_TEST_FUNC_SHIFT) |
(((GLuint) refByte) <<
S6_ALPHA_REF_SHIFT));
}
static void i830AlphaFunc(GLcontext *ctx, GLenum func, GLfloat ref)
{
i830ContextPtr i830 = I830_CONTEXT(ctx);
int test = intel_translate_compare_func(func);
GLubyte refByte;
GLuint refInt;
UNCLAMPED_FLOAT_TO_UBYTE(refByte, ref);
refInt = (GLuint)refByte;
I830_STATECHANGE(i830, I830_UPLOAD_CTX);
i830->state.Ctx[I830_CTXREG_STATE2] &= ~ALPHA_TEST_REF_MASK;
i830->state.Ctx[I830_CTXREG_STATE2] |= (ENABLE_ALPHA_TEST_FUNC |
ENABLE_ALPHA_REF_VALUE |
ALPHA_TEST_FUNC(test) |
ALPHA_REF_VALUE(refInt));
}
static void
gen6_upload_color_calc_state(struct brw_context *brw)
{
struct gl_context *ctx = &brw->ctx;
struct gen6_color_calc_state *cc;
cc = brw_state_batch(brw, AUB_TRACE_CC_STATE,
sizeof(*cc), 64, &brw->cc.state_offset);
memset(cc, 0, sizeof(*cc));
/* _NEW_COLOR */
cc->cc0.alpha_test_format = BRW_ALPHATEST_FORMAT_UNORM8;
UNCLAMPED_FLOAT_TO_UBYTE(cc->cc1.alpha_ref_fi.ui, ctx->Color.AlphaRef);
if (brw->gen < 9) {
/* _NEW_STENCIL */
cc->cc0.stencil_ref = _mesa_get_stencil_ref(ctx, 0);
cc->cc0.bf_stencil_ref =
_mesa_get_stencil_ref(ctx, ctx->Stencil._BackFace);
}
/* _NEW_COLOR */
cc->constant_r = ctx->Color.BlendColorUnclamped[0];
cc->constant_g = ctx->Color.BlendColorUnclamped[1];
cc->constant_b = ctx->Color.BlendColorUnclamped[2];
cc->constant_a = ctx->Color.BlendColorUnclamped[3];
/* Point the GPU at the new indirect state. */
if (brw->gen == 6) {
BEGIN_BATCH(4);
OUT_BATCH(_3DSTATE_CC_STATE_POINTERS << 16 | (4 - 2));
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(brw->cc.state_offset | 1);
ADVANCE_BATCH();
} else {
BEGIN_BATCH(2);
OUT_BATCH(_3DSTATE_CC_STATE_POINTERS << 16 | (2 - 2));
OUT_BATCH(brw->cc.state_offset | 1);
ADVANCE_BATCH();
}
}
/**
* Upload SAMPLER_BORDER_COLOR_STATE.
*/
void
upload_default_color(struct brw_context *brw, struct gl_sampler_object *sampler,
int unit, int ss_index)
{
struct intel_context *intel = &brw->intel;
struct gl_context *ctx = &intel->ctx;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
struct gl_texture_object *texObj = texUnit->_Current;
struct gl_texture_image *firstImage = texObj->Image[0][texObj->BaseLevel];
float color[4];
if (firstImage->_BaseFormat == GL_DEPTH_COMPONENT) {
/* GL specs that border color for depth textures is taken from the
* R channel, while the hardware uses A. Spam R into all the
* channels for safety.
*/
color[0] = sampler->BorderColor.f[0];
color[1] = sampler->BorderColor.f[0];
color[2] = sampler->BorderColor.f[0];
color[3] = sampler->BorderColor.f[0];
} else {
color[0] = sampler->BorderColor.f[0];
color[1] = sampler->BorderColor.f[1];
color[2] = sampler->BorderColor.f[2];
color[3] = sampler->BorderColor.f[3];
}
/* In some cases we use an RGBA surface format for GL RGB textures,
* where we've initialized the A channel to 1.0. We also have to set
* the border color alpha to 1.0 in that case.
*/
if (firstImage->_BaseFormat == GL_RGB)
color[3] = 1.0;
if (intel->gen == 5 || intel->gen == 6) {
struct gen5_sampler_default_color *sdc;
sdc = brw_state_batch(brw, AUB_TRACE_SAMPLER_DEFAULT_COLOR,
sizeof(*sdc), 32, &brw->wm.sdc_offset[ss_index]);
memset(sdc, 0, sizeof(*sdc));
UNCLAMPED_FLOAT_TO_UBYTE(sdc->ub[0], color[0]);
UNCLAMPED_FLOAT_TO_UBYTE(sdc->ub[1], color[1]);
UNCLAMPED_FLOAT_TO_UBYTE(sdc->ub[2], color[2]);
UNCLAMPED_FLOAT_TO_UBYTE(sdc->ub[3], color[3]);
UNCLAMPED_FLOAT_TO_USHORT(sdc->us[0], color[0]);
UNCLAMPED_FLOAT_TO_USHORT(sdc->us[1], color[1]);
UNCLAMPED_FLOAT_TO_USHORT(sdc->us[2], color[2]);
UNCLAMPED_FLOAT_TO_USHORT(sdc->us[3], color[3]);
UNCLAMPED_FLOAT_TO_SHORT(sdc->s[0], color[0]);
UNCLAMPED_FLOAT_TO_SHORT(sdc->s[1], color[1]);
UNCLAMPED_FLOAT_TO_SHORT(sdc->s[2], color[2]);
UNCLAMPED_FLOAT_TO_SHORT(sdc->s[3], color[3]);
sdc->hf[0] = _mesa_float_to_half(color[0]);
sdc->hf[1] = _mesa_float_to_half(color[1]);
sdc->hf[2] = _mesa_float_to_half(color[2]);
sdc->hf[3] = _mesa_float_to_half(color[3]);
sdc->b[0] = sdc->s[0] >> 8;
sdc->b[1] = sdc->s[1] >> 8;
sdc->b[2] = sdc->s[2] >> 8;
sdc->b[3] = sdc->s[3] >> 8;
sdc->f[0] = color[0];
sdc->f[1] = color[1];
sdc->f[2] = color[2];
sdc->f[3] = color[3];
} else {
/*
* Render a bitmap.
*/
static bool
do_blit_bitmap( struct gl_context *ctx,
GLint dstx, GLint dsty,
GLsizei width, GLsizei height,
const struct gl_pixelstore_attrib *unpack,
const GLubyte *bitmap )
{
struct intel_context *intel = intel_context(ctx);
struct gl_framebuffer *fb = ctx->DrawBuffer;
struct intel_renderbuffer *irb;
GLfloat tmpColor[4];
GLubyte ubcolor[4];
GLuint color;
GLsizei bitmap_width = width;
GLsizei bitmap_height = height;
GLint px, py;
GLuint stipple[32];
GLint orig_dstx = dstx;
GLint orig_dsty = dsty;
/* Update draw buffer bounds */
_mesa_update_state(ctx);
if (ctx->Depth.Test) {
/* The blit path produces incorrect results when depth testing is on.
* It seems the blit Z coord is always 1.0 (the far plane) so fragments
* will likely be obscured by other, closer geometry.
*/
return false;
}
intel_prepare_render(intel);
if (fb->_NumColorDrawBuffers != 1) {
perf_debug("accelerated glBitmap() only supports rendering to a "
"single color buffer\n");
return false;
}
irb = intel_renderbuffer(fb->_ColorDrawBuffers[0]);
if (_mesa_is_bufferobj(unpack->BufferObj)) {
bitmap = map_pbo(ctx, width, height, unpack, bitmap);
if (bitmap == NULL)
return true; /* even though this is an error, we're done */
}
COPY_4V(tmpColor, ctx->Current.RasterColor);
if (_mesa_need_secondary_color(ctx)) {
ADD_3V(tmpColor, tmpColor, ctx->Current.RasterSecondaryColor);
}
UNCLAMPED_FLOAT_TO_UBYTE(ubcolor[0], tmpColor[0]);
UNCLAMPED_FLOAT_TO_UBYTE(ubcolor[1], tmpColor[1]);
UNCLAMPED_FLOAT_TO_UBYTE(ubcolor[2], tmpColor[2]);
UNCLAMPED_FLOAT_TO_UBYTE(ubcolor[3], tmpColor[3]);
switch (irb->mt->format) {
case MESA_FORMAT_B8G8R8A8_UNORM:
case MESA_FORMAT_B8G8R8X8_UNORM:
color = PACK_COLOR_8888(ubcolor[3], ubcolor[0], ubcolor[1], ubcolor[2]);
break;
case MESA_FORMAT_B5G6R5_UNORM:
color = PACK_COLOR_565(ubcolor[0], ubcolor[1], ubcolor[2]);
break;
default:
perf_debug("Unsupported format %s in accelerated glBitmap()\n",
_mesa_get_format_name(irb->mt->format));
return false;
}
if (!intel_check_blit_fragment_ops(ctx, tmpColor[3] == 1.0F))
return false;
/* Clip to buffer bounds and scissor. */
if (!_mesa_clip_to_region(fb->_Xmin, fb->_Ymin,
fb->_Xmax, fb->_Ymax,
&dstx, &dsty, &width, &height))
goto out;
dsty = y_flip(fb, dsty, height);
#define DY 32
#define DX 32
/* Chop it all into chunks that can be digested by hardware: */
for (py = 0; py < height; py += DY) {
for (px = 0; px < width; px += DX) {
int h = MIN2(DY, height - py);
int w = MIN2(DX, width - px);
GLuint sz = ALIGN(ALIGN(w,8) * h, 64)/8;
GLenum logic_op = ctx->Color.ColorLogicOpEnabled ?
ctx->Color.LogicOp : GL_COPY;
assert(sz <= sizeof(stipple));
memset(stipple, 0, sz);
/* May need to adjust this when padding has been introduced in
* sz above:
*
* Have to translate destination coordinates back into source
* coordinates.
*/
int count = get_bitmap_rect(bitmap_width, bitmap_height, unpack,
bitmap,
-orig_dstx + (dstx + px),
-orig_dsty + y_flip(fb, dsty + py, h),
w, h,
(GLubyte *)stipple,
8,
_mesa_is_winsys_fbo(fb));
if (count == 0)
continue;
if (!intelEmitImmediateColorExpandBlit(intel,
irb->mt->cpp,
(GLubyte *)stipple,
sz,
color,
irb->mt->region->pitch,
irb->mt->region->bo,
0,
irb->mt->region->tiling,
dstx + px,
dsty + py,
w, h,
logic_op)) {
return false;
}
if (ctx->Query.CurrentOcclusionObject)
ctx->Query.CurrentOcclusionObject->Result += count;
}
}
out:
if (unlikely(INTEL_DEBUG & DEBUG_SYNC))
intel_batchbuffer_flush(intel);
if (_mesa_is_bufferobj(unpack->BufferObj)) {
/* done with PBO so unmap it now */
ctx->Driver.UnmapBuffer(ctx, unpack->BufferObj, MAP_INTERNAL);
}
intel_check_front_buffer_rendering(intel);
return true;
}
