void
i915_upload_program(struct i915_context *i915,
struct i915_fragment_program *p)
{
GLuint program_size = p->csr - p->program;
GLuint decl_size = p->decl - p->declarations;
if (p->error)
return;
/* Could just go straight to the batchbuffer from here:
*/
if (i915->state.ProgramSize != (program_size + decl_size) ||
memcmp(i915->state.Program + decl_size, p->program,
program_size * sizeof(int)) != 0) {
I915_STATECHANGE(i915, I915_UPLOAD_PROGRAM);
memcpy(i915->state.Program, p->declarations, decl_size * sizeof(int));
memcpy(i915->state.Program + decl_size, p->program,
program_size * sizeof(int));
i915->state.ProgramSize = decl_size + program_size;
}
/* Always seemed to get a failure if I used memcmp() to
* shortcircuit this state upload. Needs further investigation?
*/
if (p->nr_constants) {
GLuint nr = p->nr_constants;
I915_ACTIVESTATE(i915, I915_UPLOAD_CONSTANTS, 1);
I915_STATECHANGE(i915, I915_UPLOAD_CONSTANTS);
i915->state.Constant[0] = _3DSTATE_PIXEL_SHADER_CONSTANTS | ((nr) * 4);
i915->state.Constant[1] = (1 << (nr - 1)) | ((1 << (nr - 1)) - 1);
memcpy(&i915->state.Constant[2], p->constant, 4 * sizeof(int) * (nr));
i915->state.ConstantSize = 2 + (nr) * 4;
if (0) {
GLuint i;
for (i = 0; i < nr; i++) {
fprintf(stderr, "const[%d]: %f %f %f %f\n", i,
p->constant[i][0],
p->constant[i][1], p->constant[i][2], p->constant[i][3]);
}
}
}
else {
I915_ACTIVESTATE(i915, I915_UPLOAD_CONSTANTS, 0);
}
p->on_hardware = 1;
}
static void
i915UpdateBlendState(struct gl_context * ctx)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
GLuint iab = (i915->state.Blend[I915_BLENDREG_IAB] &
~(IAB_SRC_FACTOR_MASK |
IAB_DST_FACTOR_MASK |
(BLENDFUNC_MASK << IAB_FUNC_SHIFT) | IAB_ENABLE));
GLuint lis6 = (i915->state.Ctx[I915_CTXREG_LIS6] &
~(S6_CBUF_SRC_BLEND_FACT_MASK |
S6_CBUF_DST_BLEND_FACT_MASK | S6_CBUF_BLEND_FUNC_MASK));
GLuint eqRGB = ctx->Color.Blend[0].EquationRGB;
GLuint eqA = ctx->Color.Blend[0].EquationA;
GLuint srcRGB = ctx->Color.Blend[0].SrcRGB;
GLuint dstRGB = ctx->Color.Blend[0].DstRGB;
GLuint srcA = ctx->Color.Blend[0].SrcA;
GLuint dstA = ctx->Color.Blend[0].DstA;
if (eqRGB == GL_MIN || eqRGB == GL_MAX) {
srcRGB = dstRGB = GL_ONE;
}
if (eqA == GL_MIN || eqA == GL_MAX) {
srcA = dstA = GL_ONE;
}
lis6 |= SRC_BLND_FACT(intel_translate_blend_factor(srcRGB));
lis6 |= DST_BLND_FACT(intel_translate_blend_factor(dstRGB));
lis6 |= translate_blend_equation(eqRGB) << S6_CBUF_BLEND_FUNC_SHIFT;
iab |= SRC_ABLND_FACT(intel_translate_blend_factor(srcA));
iab |= DST_ABLND_FACT(intel_translate_blend_factor(dstA));
iab |= translate_blend_equation(eqA) << IAB_FUNC_SHIFT;
if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB)
iab |= IAB_ENABLE;
if (iab != i915->state.Blend[I915_BLENDREG_IAB]) {
i915->state.Blend[I915_BLENDREG_IAB] = iab;
I915_STATECHANGE(i915, I915_UPLOAD_BLEND);
}
if (lis6 != i915->state.Ctx[I915_CTXREG_LIS6]) {
i915->state.Ctx[I915_CTXREG_LIS6] = lis6;
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
}
/* This will catch a logicop blend equation */
i915EvalLogicOpBlendState(ctx);
}
static void
i915_reduced_primitive_state(struct intel_context *intel, GLenum rprim)
{
struct i915_context *i915 = i915_context(&intel->ctx);
GLuint st1 = i915->state.Stipple[I915_STPREG_ST1];
st1 &= ~ST1_ENABLE;
switch (rprim) {
case GL_QUADS: /* from RASTERIZE(GL_QUADS) in t_dd_tritemp.h */
case GL_TRIANGLES:
if (intel->ctx.Polygon.StippleFlag && intel->hw_stipple)
st1 |= ST1_ENABLE;
break;
case GL_LINES:
case GL_POINTS:
default:
break;
}
i915->intel.reduced_primitive = rprim;
if (st1 != i915->state.Stipple[I915_STPREG_ST1]) {
INTEL_FIREVERTICES(intel);
I915_STATECHANGE(i915, I915_UPLOAD_STIPPLE);
i915->state.Stipple[I915_STPREG_ST1] = st1;
}
}
static void
i915StencilOpSeparate(GLcontext * ctx, GLenum face, GLenum fail, GLenum zfail,
GLenum zpass)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
int fop = intel_translate_stencil_op(fail);
int dfop = intel_translate_stencil_op(zfail);
int dpop = intel_translate_stencil_op(zpass);
DBG("%s: fail : %s, zfail: %s, zpass : %s\n", __FUNCTION__,
_mesa_lookup_enum_by_nr(fail),
_mesa_lookup_enum_by_nr(zfail), _mesa_lookup_enum_by_nr(zpass));
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_LIS5] &= ~(S5_STENCIL_FAIL_MASK |
S5_STENCIL_PASS_Z_FAIL_MASK |
S5_STENCIL_PASS_Z_PASS_MASK);
i915->state.Ctx[I915_CTXREG_LIS5] |= ((fop << S5_STENCIL_FAIL_SHIFT) |
(dfop <<
S5_STENCIL_PASS_Z_FAIL_SHIFT) |
(dpop <<
S5_STENCIL_PASS_Z_PASS_SHIFT));
}
static GLboolean enable_tex_2d( GLcontext *ctx, GLuint unit )
{
i915ContextPtr i915 = I915_CONTEXT(ctx);
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
struct gl_texture_object *tObj = texUnit->_Current;
i915TextureObjectPtr t = (i915TextureObjectPtr)tObj->DriverData;
GLuint ss3 = i915->state.Tex[unit][I915_TEXREG_SS3];
ss3 |= SS3_NORMALIZED_COORDS;
if (ss3 != i915->state.Tex[unit][I915_TEXREG_SS3]) {
I915_STATECHANGE(i915, I915_UPLOAD_TEX(unit));
i915->state.Tex[unit][I915_TEXREG_SS3] = ss3;
}
/* Upload teximages (not pipelined)
*/
if (t->intel.base.dirty_images[0]) {
i915SetTexImages( i915, tObj );
if (!intelUploadTexImages( &i915->intel, &t->intel, 0 )) {
return GL_FALSE;
}
}
return GL_TRUE;
}
static void
i915StencilFuncSeparate(GLcontext * ctx, GLenum face, GLenum func, GLint ref,
GLuint mask)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
int test = intel_translate_compare_func(func);
mask = mask & 0xff;
DBG("%s : func: %s, ref : 0x%x, mask: 0x%x\n", __FUNCTION__,
_mesa_lookup_enum_by_nr(func), ref, mask);
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_STATE4] &= ~MODE4_ENABLE_STENCIL_TEST_MASK;
i915->state.Ctx[I915_CTXREG_STATE4] |= (ENABLE_STENCIL_TEST_MASK |
STENCIL_TEST_MASK(mask));
i915->state.Ctx[I915_CTXREG_LIS5] &= ~(S5_STENCIL_REF_MASK |
S5_STENCIL_TEST_FUNC_MASK);
i915->state.Ctx[I915_CTXREG_LIS5] |= ((ref << S5_STENCIL_REF_SHIFT) |
(test <<
S5_STENCIL_TEST_FUNC_SHIFT));
}
/* This function makes sure that the proper enables are
* set for LogicOp, Independant Alpha Blend, and Blending.
* It needs to be called from numerous places where we
* could change the LogicOp or Independant Alpha Blend without subsequent
* calls to glEnable.
*/
static void
i915EvalLogicOpBlendState(struct gl_context * ctx)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
GLuint dw0, dw1;
dw0 = i915->state.Ctx[I915_CTXREG_LIS5];
dw1 = i915->state.Ctx[I915_CTXREG_LIS6];
if (ctx->Color.ColorLogicOpEnabled) {
dw0 |= S5_LOGICOP_ENABLE;
dw1 &= ~S6_CBUF_BLEND_ENABLE;
}
else {
dw0 &= ~S5_LOGICOP_ENABLE;
if (ctx->Color.BlendEnabled) {
dw1 |= S6_CBUF_BLEND_ENABLE;
}
else {
dw1 &= ~S6_CBUF_BLEND_ENABLE;
}
}
if (dw0 != i915->state.Ctx[I915_CTXREG_LIS5] ||
dw1 != i915->state.Ctx[I915_CTXREG_LIS6]) {
i915->state.Ctx[I915_CTXREG_LIS5] = dw0;
i915->state.Ctx[I915_CTXREG_LIS6] = dw1;
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
}
}
static void
i915CullFaceFrontFace(struct gl_context * ctx, GLenum unused)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
GLuint mode, dw;
DBG("%s %d\n", __FUNCTION__,
ctx->DrawBuffer ? ctx->DrawBuffer->Name : 0);
if (!ctx->Polygon.CullFlag) {
mode = S4_CULLMODE_NONE;
}
else if (ctx->Polygon.CullFaceMode != GL_FRONT_AND_BACK) {
mode = S4_CULLMODE_CW;
if (ctx->DrawBuffer && ctx->DrawBuffer->Name != 0)
mode ^= (S4_CULLMODE_CW ^ S4_CULLMODE_CCW);
if (ctx->Polygon.CullFaceMode == GL_FRONT)
mode ^= (S4_CULLMODE_CW ^ S4_CULLMODE_CCW);
if (ctx->Polygon.FrontFace != GL_CCW)
mode ^= (S4_CULLMODE_CW ^ S4_CULLMODE_CCW);
}
else {
mode = S4_CULLMODE_BOTH;
}
dw = i915->state.Ctx[I915_CTXREG_LIS4];
dw &= ~S4_CULLMODE_MASK;
dw |= mode;
if (dw != i915->state.Ctx[I915_CTXREG_LIS4]) {
i915->state.Ctx[I915_CTXREG_LIS4] = dw;
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
}
}
/* =============================================================
* Polygon stipple
*
* The i915 supports a 4x4 stipple natively, GL wants 32x32.
* Fortunately stipple is usually a repeating pattern.
*/
static void
i915PolygonStipple(struct gl_context * ctx, const GLubyte * mask)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
const GLubyte *m;
GLubyte p[4];
int i, j, k;
int active = (ctx->Polygon.StippleFlag &&
i915->intel.reduced_primitive == GL_TRIANGLES);
GLuint newMask;
if (active) {
I915_STATECHANGE(i915, I915_UPLOAD_STIPPLE);
i915->state.Stipple[I915_STPREG_ST1] &= ~ST1_ENABLE;
}
/* Use the already unpacked stipple data from the context rather than the
* uninterpreted mask passed in.
*/
mask = (const GLubyte *)ctx->PolygonStipple;
m = mask;
p[0] = mask[12] & 0xf;
p[0] |= p[0] << 4;
p[1] = mask[8] & 0xf;
p[1] |= p[1] << 4;
p[2] = mask[4] & 0xf;
p[2] |= p[2] << 4;
p[3] = mask[0] & 0xf;
p[3] |= p[3] << 4;
for (k = 0; k < 8; k++)
for (j = 3; j >= 0; j--)
for (i = 0; i < 4; i++, m++)
if (*m != p[j]) {
i915->intel.hw_stipple = 0;
return;
}
newMask = (((p[0] & 0xf) << 0) |
((p[1] & 0xf) << 4) |
((p[2] & 0xf) << 8) | ((p[3] & 0xf) << 12));
if (newMask == 0xffff || newMask == 0x0) {
/* this is needed to make conform pass */
i915->intel.hw_stipple = 0;
return;
}
i915->state.Stipple[I915_STPREG_ST1] &= ~0xffff;
i915->state.Stipple[I915_STPREG_ST1] |= newMask;
i915->intel.hw_stipple = 1;
if (active)
i915->state.Stipple[I915_STPREG_ST1] |= ST1_ENABLE;
}
static void
i915DepthFunc(GLcontext * ctx, GLenum func)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
int test = intel_translate_compare_func(func);
DBG("%s\n", __FUNCTION__);
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_LIS6] &= ~S6_DEPTH_TEST_FUNC_MASK;
i915->state.Ctx[I915_CTXREG_LIS6] |= test << S6_DEPTH_TEST_FUNC_SHIFT;
}
static void
i915LogicOp(struct gl_context * ctx, GLenum opcode)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
int tmp = intel_translate_logic_op(opcode);
DBG("%s\n", __FUNCTION__);
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_STATE4] &= ~LOGICOP_MASK;
i915->state.Ctx[I915_CTXREG_STATE4] |= LOGIC_OP_FUNC(tmp);
}
static void
i915Fogfv(GLcontext * ctx, GLenum pname, const GLfloat * param)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
switch (pname) {
case GL_FOG_COORDINATE_SOURCE_EXT:
case GL_FOG_MODE:
case GL_FOG_START:
case GL_FOG_END:
break;
case GL_FOG_DENSITY:
I915_STATECHANGE(i915, I915_UPLOAD_FOG);
if (i915->state.Fog[I915_FOGREG_MODE1] & FMC1_FOGINDEX_Z) {
i915->state.Fog[I915_FOGREG_MODE3] =
(GLuint) (ctx->Fog.Density * FMC3_D_ONE);
}
else {
fi_type fi;
fi.f = ctx->Fog.Density;
i915->state.Fog[I915_FOGREG_MODE3] = fi.i;
}
break;
case GL_FOG_COLOR:
I915_STATECHANGE(i915, I915_UPLOAD_FOG);
i915->state.Fog[I915_FOGREG_COLOR] =
(_3DSTATE_FOG_COLOR_CMD |
((GLubyte) (ctx->Fog.Color[0] * 255.0F) << 16) |
((GLubyte) (ctx->Fog.Color[1] * 255.0F) << 8) |
((GLubyte) (ctx->Fog.Color[2] * 255.0F) << 0));
break;
default:
break;
}
}
void
i915_update_provoking_vertex(struct gl_context * ctx)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_LIS6] &= ~(S6_TRISTRIP_PV_MASK);
I915_STATECHANGE(i915, I915_UPLOAD_RASTER_RULES);
i915->state.RasterRules[I915_RASTER_RULES] &= ~(LINE_STRIP_PROVOKE_VRTX_MASK |
TRI_FAN_PROVOKE_VRTX_MASK);
/* _NEW_LIGHT */
if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION) {
i915->state.RasterRules[I915_RASTER_RULES] |= (LINE_STRIP_PROVOKE_VRTX(1) |
TRI_FAN_PROVOKE_VRTX(2));
i915->state.Ctx[I915_CTXREG_LIS6] |= (2 << S6_TRISTRIP_PV_SHIFT);
} else {
i915->state.RasterRules[I915_RASTER_RULES] |= (LINE_STRIP_PROVOKE_VRTX(0) |
TRI_FAN_PROVOKE_VRTX(1));
i915->state.Ctx[I915_CTXREG_LIS6] |= (0 << S6_TRISTRIP_PV_SHIFT);
}
}
static void
i915StencilMaskSeparate(GLcontext * ctx, GLenum face, GLuint mask)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
DBG("%s : mask 0x%x\n", __FUNCTION__, mask);
mask = mask & 0xff;
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_STATE4] &= ~MODE4_ENABLE_STENCIL_WRITE_MASK;
i915->state.Ctx[I915_CTXREG_STATE4] |= (ENABLE_STENCIL_WRITE_MASK |
STENCIL_WRITE_MASK(mask));
}
static void
i915DepthMask(GLcontext * ctx, GLboolean flag)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
DBG("%s flag (%d)\n", __FUNCTION__, flag);
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
if (flag && ctx->Depth.Test)
i915->state.Ctx[I915_CTXREG_LIS6] |= S6_DEPTH_WRITE_ENABLE;
else
i915->state.Ctx[I915_CTXREG_LIS6] &= ~S6_DEPTH_WRITE_ENABLE;
}
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
i915DepthFunc(struct gl_context * ctx, GLenum func)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
int test = intel_translate_compare_func(func);
GLuint dw;
DBG("%s\n", __FUNCTION__);
dw = i915->state.Ctx[I915_CTXREG_LIS6];
dw &= ~S6_DEPTH_TEST_FUNC_MASK;
dw |= test << S6_DEPTH_TEST_FUNC_SHIFT;
if (dw != i915->state.Ctx[I915_CTXREG_LIS6]) {
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_LIS6] = dw;
}
}
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
i915PointSize(struct gl_context * ctx, GLfloat size)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
int lis4 = i915->state.Ctx[I915_CTXREG_LIS4] & ~S4_POINT_WIDTH_MASK;
GLint point_size = (int) round(size);
DBG("%s\n", __FUNCTION__);
point_size = CLAMP(point_size, 1, 255);
lis4 |= point_size << S4_POINT_WIDTH_SHIFT;
if (lis4 != i915->state.Ctx[I915_CTXREG_LIS4]) {
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_LIS4] = lis4;
}
}
static void
i915ShadeModel(struct gl_context * ctx, GLenum mode)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
if (mode == GL_SMOOTH) {
i915->state.Ctx[I915_CTXREG_LIS4] &= ~(S4_FLATSHADE_ALPHA |
S4_FLATSHADE_COLOR |
S4_FLATSHADE_SPECULAR);
}
else {
i915->state.Ctx[I915_CTXREG_LIS4] |= (S4_FLATSHADE_ALPHA |
S4_FLATSHADE_COLOR |
S4_FLATSHADE_SPECULAR);
}
}
static void
i915LineWidth(struct gl_context * ctx, GLfloat widthf)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
int lis4 = i915->state.Ctx[I915_CTXREG_LIS4] & ~S4_LINE_WIDTH_MASK;
int width;
DBG("%s\n", __FUNCTION__);
width = (int) (widthf * 2);
width = CLAMP(width, 1, 0xf);
lis4 |= width << S4_LINE_WIDTH_SHIFT;
if (lis4 != i915->state.Ctx[I915_CTXREG_LIS4]) {
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_LIS4] = lis4;
}
}
static void i915_import_tex_unit( i915ContextPtr i915,
i915TextureObjectPtr t,
GLuint unit )
{
GLuint state[I915_TEX_SETUP_SIZE];
if(INTEL_DEBUG&DEBUG_TEXTURE)
fprintf(stderr, "%s unit(%d)\n", __FUNCTION__, unit);
if (i915->intel.CurrentTexObj[unit])
i915->intel.CurrentTexObj[unit]->base.bound &= ~(1U << unit);
i915->intel.CurrentTexObj[unit] = (intelTextureObjectPtr)t;
t->intel.base.bound |= (1 << unit);
if (t->intel.dirty & I915_UPLOAD_TEX(unit)) {
i915ImportTexObjState( t->intel.base.tObj );
t->intel.dirty &= ~I915_UPLOAD_TEX(unit);
}
state[I915_TEXREG_MS2] = t->intel.TextureOffset;
state[I915_TEXREG_MS3] = t->Setup[I915_TEXREG_MS3];
state[I915_TEXREG_MS4] = t->Setup[I915_TEXREG_MS4];
state[I915_TEXREG_SS2] = (i915->state.Tex[unit][I915_TEXREG_SS2] &
SS2_LOD_BIAS_MASK);
state[I915_TEXREG_SS2] |= (t->Setup[I915_TEXREG_SS2] & ~SS2_LOD_BIAS_MASK);
state[I915_TEXREG_SS3] = (i915->state.Tex[unit][I915_TEXREG_SS3] &
SS3_NORMALIZED_COORDS);
state[I915_TEXREG_SS3] |= (t->Setup[I915_TEXREG_SS3] &
~(SS3_NORMALIZED_COORDS|
SS3_TEXTUREMAP_INDEX_MASK));
state[I915_TEXREG_SS3] |= (unit<<SS3_TEXTUREMAP_INDEX_SHIFT);
state[I915_TEXREG_SS4] = t->Setup[I915_TEXREG_SS4];
if (memcmp(state, i915->state.Tex[unit], sizeof(state)) != 0) {
I915_STATECHANGE( i915, I915_UPLOAD_TEX(unit) );
memcpy(i915->state.Tex[unit], state, sizeof(state));
}
}
static void i915TexEnv( GLcontext *ctx, GLenum target,
GLenum pname, const GLfloat *param )
{
i915ContextPtr i915 = I915_CONTEXT( ctx );
GLuint unit = ctx->Texture.CurrentUnit;
switch (pname) {
case GL_TEXTURE_ENV_COLOR: /* Should be a tracked param */
case GL_TEXTURE_ENV_MODE:
case GL_COMBINE_RGB:
case GL_COMBINE_ALPHA:
case GL_SOURCE0_RGB:
case GL_SOURCE1_RGB:
case GL_SOURCE2_RGB:
case GL_SOURCE0_ALPHA:
case GL_SOURCE1_ALPHA:
case GL_SOURCE2_ALPHA:
case GL_OPERAND0_RGB:
case GL_OPERAND1_RGB:
case GL_OPERAND2_RGB:
case GL_OPERAND0_ALPHA:
case GL_OPERAND1_ALPHA:
case GL_OPERAND2_ALPHA:
case GL_RGB_SCALE:
case GL_ALPHA_SCALE:
i915->tex_program.translated = 0;
break;
case GL_TEXTURE_LOD_BIAS: {
int b = (int) ((*param) * 16.0);
if (b > 255) b = 255;
if (b < -256) b = -256;
I915_STATECHANGE(i915, I915_UPLOAD_TEX(unit));
i915->state.Tex[unit][I915_TEXREG_SS2] &= ~SS2_LOD_BIAS_MASK;
i915->state.Tex[unit][I915_TEXREG_SS2] |=
((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK);
break;
}
default:
break;
}
}
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);
}
}
void
i915_update_sprite_point_enable(struct gl_context *ctx)
{
struct intel_context *intel = intel_context(ctx);
/* _NEW_PROGRAM */
struct i915_fragment_program *p =
(struct i915_fragment_program *) ctx->FragmentProgram._Current;
const GLbitfield64 inputsRead = p->FragProg.Base.InputsRead;
struct i915_context *i915 = i915_context(ctx);
GLuint s4 = i915->state.Ctx[I915_CTXREG_LIS4] & ~S4_VFMT_MASK;
int i;
GLuint coord_replace_bits = 0x0;
GLuint tex_coord_unit_bits = 0x0;
for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) {
/* _NEW_POINT */
if (ctx->Point.CoordReplace[i] && ctx->Point.PointSprite)
coord_replace_bits |= (1 << i);
if (inputsRead & FRAG_BIT_TEX(i))
tex_coord_unit_bits |= (1 << i);
}
/*
* Here we can't enable the SPRITE_POINT_ENABLE bit when the mis-match
* of tex_coord_unit_bits and coord_replace_bits, or this will make all
* the other non-point-sprite coords(like varying inputs, as we now use
* tex coord to implement varying inputs) be replaced to value (0, 0)-(1, 1).
*
* Thus, do fallback when needed.
*/
FALLBACK(intel, I915_FALLBACK_COORD_REPLACE,
coord_replace_bits && coord_replace_bits != tex_coord_unit_bits);
s4 &= ~S4_SPRITE_POINT_ENABLE;
s4 |= (coord_replace_bits && coord_replace_bits == tex_coord_unit_bits) ?
S4_SPRITE_POINT_ENABLE : 0;
if (s4 != i915->state.Ctx[I915_CTXREG_LIS4]) {
i915->state.Ctx[I915_CTXREG_LIS4] = s4;
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
}
}
static void
i915DepthMask(struct gl_context * ctx, GLboolean flag)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
GLuint dw;
DBG("%s flag (%d)\n", __FUNCTION__, flag);
if (!ctx->DrawBuffer || !ctx->DrawBuffer->Visual.depthBits)
flag = false;
dw = i915->state.Ctx[I915_CTXREG_LIS6];
if (flag && ctx->Depth.Test)
dw |= S6_DEPTH_WRITE_ENABLE;
else
dw &= ~S6_DEPTH_WRITE_ENABLE;
if (dw != i915->state.Ctx[I915_CTXREG_LIS6]) {
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_LIS6] = dw;
}
}
/* =============================================================
* Hardware clipping
*/
static void
i915Scissor(struct gl_context * ctx, GLint x, GLint y, GLsizei w, GLsizei h)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
int x1, y1, x2, y2;
if (!ctx->DrawBuffer)
return;
DBG("%s %d,%d %dx%d\n", __FUNCTION__, x, y, w, h);
if (ctx->DrawBuffer->Name == 0) {
x1 = x;
y1 = ctx->DrawBuffer->Height - (y + h);
x2 = x + w - 1;
y2 = y1 + h - 1;
DBG("%s %d..%d,%d..%d (inverted)\n", __FUNCTION__, x1, x2, y1, y2);
}
else {
/* FBO - not inverted
*/
x1 = x;
y1 = y;
x2 = x + w - 1;
y2 = y + h - 1;
DBG("%s %d..%d,%d..%d (not inverted)\n", __FUNCTION__, x1, x2, y1, y2);
}
x1 = CLAMP(x1, 0, ctx->DrawBuffer->Width - 1);
y1 = CLAMP(y1, 0, ctx->DrawBuffer->Height - 1);
x2 = CLAMP(x2, 0, ctx->DrawBuffer->Width - 1);
y2 = CLAMP(y2, 0, ctx->DrawBuffer->Height - 1);
DBG("%s %d..%d,%d..%d (clamped)\n", __FUNCTION__, x1, x2, y1, y2);
I915_STATECHANGE(i915, I915_UPLOAD_BUFFERS);
i915->state.Buffer[I915_DESTREG_SR1] = (y1 << 16) | (x1 & 0xffff);
i915->state.Buffer[I915_DESTREG_SR2] = (y2 << 16) | (x2 & 0xffff);
}
/* This function makes sure that the proper enables are
* set for LogicOp, Independant Alpha Blend, and Blending.
* It needs to be called from numerous places where we
* could change the LogicOp or Independant Alpha Blend without subsequent
* calls to glEnable.
*/
static void
i915EvalLogicOpBlendState(GLcontext * ctx)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
if (RGBA_LOGICOP_ENABLED(ctx)) {
i915->state.Ctx[I915_CTXREG_LIS5] |= S5_LOGICOP_ENABLE;
i915->state.Ctx[I915_CTXREG_LIS6] &= ~S6_CBUF_BLEND_ENABLE;
}
else {
i915->state.Ctx[I915_CTXREG_LIS5] &= ~S5_LOGICOP_ENABLE;
if (ctx->Color.BlendEnabled) {
i915->state.Ctx[I915_CTXREG_LIS6] |= S6_CBUF_BLEND_ENABLE;
}
else {
i915->state.Ctx[I915_CTXREG_LIS6] &= ~S6_CBUF_BLEND_ENABLE;
}
}
}
static void
i915ColorMask(struct gl_context * ctx,
GLboolean r, GLboolean g, GLboolean b, GLboolean a)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
GLuint tmp = i915->state.Ctx[I915_CTXREG_LIS5] & ~S5_WRITEDISABLE_MASK;
DBG("%s r(%d) g(%d) b(%d) a(%d)\n", __FUNCTION__, r, g, b,
a);
if (!r)
tmp |= S5_WRITEDISABLE_RED;
if (!g)
tmp |= S5_WRITEDISABLE_GREEN;
if (!b)
tmp |= S5_WRITEDISABLE_BLUE;
if (!a)
tmp |= S5_WRITEDISABLE_ALPHA;
if (tmp != i915->state.Ctx[I915_CTXREG_LIS5]) {
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
i915->state.Ctx[I915_CTXREG_LIS5] = tmp;
}
}
void
i915ValidateFragmentProgram(struct i915_context *i915)
{
GLcontext *ctx = &i915->intel.ctx;
struct intel_context *intel = intel_context(ctx);
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct vertex_buffer *VB = &tnl->vb;
struct i915_fragment_program *p =
(struct i915_fragment_program *) ctx->FragmentProgram._Current;
const GLuint inputsRead = p->FragProg.Base.InputsRead;
GLuint s4 = i915->state.Ctx[I915_CTXREG_LIS4] & ~S4_VFMT_MASK;
GLuint s2 = S2_TEXCOORD_NONE;
int i, offset = 0;
if (i915->current_program != p) {
if (i915->current_program) {
i915->current_program->on_hardware = 0;
i915->current_program->params_uptodate = 0;
}
i915->current_program = p;
}
/* Important:
*/
VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr;
if (!p->translated)
translate_program(p);
intel->vertex_attr_count = 0;
intel->wpos_offset = 0;
intel->wpos_size = 0;
intel->coloroffset = 0;
intel->specoffset = 0;
if (inputsRead & FRAG_BITS_TEX_ANY) {
EMIT_ATTR(_TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, S4_VFMT_XYZW, 16);
}
else {
EMIT_ATTR(_TNL_ATTRIB_POS, EMIT_3F_VIEWPORT, S4_VFMT_XYZ, 12);
}
if (inputsRead & FRAG_BIT_COL0) {
intel->coloroffset = offset / 4;
EMIT_ATTR(_TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA, S4_VFMT_COLOR, 4);
}
if ((inputsRead & (FRAG_BIT_COL1 | FRAG_BIT_FOGC)) ||
i915->vertex_fog != I915_FOG_NONE) {
if (inputsRead & FRAG_BIT_COL1) {
intel->specoffset = offset / 4;
EMIT_ATTR(_TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR, S4_VFMT_SPEC_FOG, 3);
}
else
EMIT_PAD(3);
if ((inputsRead & FRAG_BIT_FOGC) || i915->vertex_fog != I915_FOG_NONE)
EMIT_ATTR(_TNL_ATTRIB_FOG, EMIT_1UB_1F, S4_VFMT_SPEC_FOG, 1);
else
EMIT_PAD(1);
}
/* XXX this was disabled, but enabling this code helped fix the Glean
* tfragprog1 fog tests.
*/
#if 1
if ((inputsRead & FRAG_BIT_FOGC) || i915->vertex_fog != I915_FOG_NONE) {
EMIT_ATTR(_TNL_ATTRIB_FOG, EMIT_1F, S4_VFMT_FOG_PARAM, 4);
}
#endif
for (i = 0; i < p->ctx->Const.MaxTextureCoordUnits; i++) {
if (inputsRead & FRAG_BIT_TEX(i)) {
int sz = VB->TexCoordPtr[i]->size;
s2 &= ~S2_TEXCOORD_FMT(i, S2_TEXCOORD_FMT0_MASK);
s2 |= S2_TEXCOORD_FMT(i, SZ_TO_HW(sz));
EMIT_ATTR(_TNL_ATTRIB_TEX0 + i, EMIT_SZ(sz), 0, sz * 4);
}
else if (i == p->wpos_tex) {
/* If WPOS is required, duplicate the XYZ position data in an
* unused texture coordinate:
*/
s2 &= ~S2_TEXCOORD_FMT(i, S2_TEXCOORD_FMT0_MASK);
s2 |= S2_TEXCOORD_FMT(i, SZ_TO_HW(3));
intel->wpos_offset = offset;
intel->wpos_size = 3 * sizeof(GLuint);
EMIT_PAD(intel->wpos_size);
}
}
if (s2 != i915->state.Ctx[I915_CTXREG_LIS2] ||
s4 != i915->state.Ctx[I915_CTXREG_LIS4]) {
int k;
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
/* Must do this *after* statechange, so as not to affect
* buffered vertices reliant on the old state:
*/
intel->vertex_size = _tnl_install_attrs(&intel->ctx,
intel->vertex_attrs,
intel->vertex_attr_count,
intel->ViewportMatrix.m, 0);
intel->vertex_size >>= 2;
i915->state.Ctx[I915_CTXREG_LIS2] = s2;
i915->state.Ctx[I915_CTXREG_LIS4] = s4;
k = intel->vtbl.check_vertex_size(intel, intel->vertex_size);
assert(k);
}
