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
i915Enable(struct gl_context * ctx, GLenum cap, GLboolean state)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
GLuint dw;
switch (cap) {
case GL_TEXTURE_2D:
break;
case GL_LIGHTING:
case GL_COLOR_SUM:
update_specular(ctx);
break;
case GL_ALPHA_TEST:
dw = i915->state.Ctx[I915_CTXREG_LIS6];
if (state)
dw |= S6_ALPHA_TEST_ENABLE;
else
dw &= ~S6_ALPHA_TEST_ENABLE;
if (dw != i915->state.Ctx[I915_CTXREG_LIS6]) {
i915->state.Ctx[I915_CTXREG_LIS6] = dw;
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
}
break;
case GL_BLEND:
i915EvalLogicOpBlendState(ctx);
break;
case GL_COLOR_LOGIC_OP:
i915EvalLogicOpBlendState(ctx);
/* Logicop doesn't seem to work at 16bpp:
*/
if (ctx->Visual.rgbBits == 16)
FALLBACK(&i915->intel, I915_FALLBACK_LOGICOP, state);
break;
case GL_FRAGMENT_PROGRAM_ARB:
break;
case GL_DITHER:
dw = i915->state.Ctx[I915_CTXREG_LIS5];
if (state)
dw |= S5_COLOR_DITHER_ENABLE;
else
dw &= ~S5_COLOR_DITHER_ENABLE;
if (dw != i915->state.Ctx[I915_CTXREG_LIS5]) {
i915->state.Ctx[I915_CTXREG_LIS5] = dw;
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
}
break;
case GL_DEPTH_TEST:
dw = i915->state.Ctx[I915_CTXREG_LIS6];
if (!ctx->DrawBuffer || !ctx->DrawBuffer->Visual.depthBits)
state = false;
if (state)
dw |= S6_DEPTH_TEST_ENABLE;
else
dw &= ~S6_DEPTH_TEST_ENABLE;
if (dw != i915->state.Ctx[I915_CTXREG_LIS6]) {
i915->state.Ctx[I915_CTXREG_LIS6] = dw;
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
}
i915DepthMask(ctx, ctx->Depth.Mask);
break;
case GL_SCISSOR_TEST:
I915_STATECHANGE(i915, I915_UPLOAD_BUFFERS);
if (state)
i915->state.Buffer[I915_DESTREG_SENABLE] =
(_3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT);
else
i915->state.Buffer[I915_DESTREG_SENABLE] =
(_3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT);
break;
case GL_LINE_SMOOTH:
dw = i915->state.Ctx[I915_CTXREG_LIS4];
if (state)
dw |= S4_LINE_ANTIALIAS_ENABLE;
else
dw &= ~S4_LINE_ANTIALIAS_ENABLE;
if (dw != i915->state.Ctx[I915_CTXREG_LIS4]) {
i915->state.Ctx[I915_CTXREG_LIS4] = dw;
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
}
break;
case GL_CULL_FACE:
i915CullFaceFrontFace(ctx, 0);
break;
case GL_STENCIL_TEST:
if (!ctx->DrawBuffer || !ctx->DrawBuffer->Visual.stencilBits)
state = false;
dw = i915->state.Ctx[I915_CTXREG_LIS5];
if (state)
dw |= (S5_STENCIL_TEST_ENABLE | S5_STENCIL_WRITE_ENABLE);
else
dw &= ~(S5_STENCIL_TEST_ENABLE | S5_STENCIL_WRITE_ENABLE);
if (dw != i915->state.Ctx[I915_CTXREG_LIS5]) {
i915->state.Ctx[I915_CTXREG_LIS5] = dw;
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
}
break;
case GL_POLYGON_STIPPLE:
/* The stipple command worked on my 855GM box, but not my 845G.
* I'll do more testing later to find out exactly which hardware
* supports it. Disabled for now.
*/
if (i915->intel.hw_stipple &&
i915->intel.reduced_primitive == GL_TRIANGLES) {
I915_STATECHANGE(i915, I915_UPLOAD_STIPPLE);
if (state)
i915->state.Stipple[I915_STPREG_ST1] |= ST1_ENABLE;
else
i915->state.Stipple[I915_STPREG_ST1] &= ~ST1_ENABLE;
}
break;
case GL_POLYGON_SMOOTH:
break;
case GL_POINT_SPRITE:
/* Handle it at i915_update_sprite_point_enable () */
break;
case GL_POINT_SMOOTH:
break;
default:
;
}
}
static void
i915Enable(GLcontext * ctx, GLenum cap, GLboolean state)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
switch (cap) {
case GL_TEXTURE_2D:
break;
case GL_LIGHTING:
case GL_COLOR_SUM:
update_specular(ctx);
break;
case GL_ALPHA_TEST:
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
if (state)
i915->state.Ctx[I915_CTXREG_LIS6] |= S6_ALPHA_TEST_ENABLE;
else
i915->state.Ctx[I915_CTXREG_LIS6] &= ~S6_ALPHA_TEST_ENABLE;
break;
case GL_BLEND:
i915EvalLogicOpBlendState(ctx);
break;
case GL_COLOR_LOGIC_OP:
i915EvalLogicOpBlendState(ctx);
/* Logicop doesn't seem to work at 16bpp:
*/
if (i915->intel.intelScreen->cpp == 2) /* XXX FBO fix */
FALLBACK(&i915->intel, I915_FALLBACK_LOGICOP, state);
break;
case GL_FRAGMENT_PROGRAM_ARB:
break;
case GL_DITHER:
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
if (state)
i915->state.Ctx[I915_CTXREG_LIS5] |= S5_COLOR_DITHER_ENABLE;
else
i915->state.Ctx[I915_CTXREG_LIS5] &= ~S5_COLOR_DITHER_ENABLE;
break;
case GL_DEPTH_TEST:
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
if (state)
i915->state.Ctx[I915_CTXREG_LIS6] |= S6_DEPTH_TEST_ENABLE;
else
i915->state.Ctx[I915_CTXREG_LIS6] &= ~S6_DEPTH_TEST_ENABLE;
i915DepthMask(ctx, ctx->Depth.Mask);
break;
case GL_SCISSOR_TEST:
I915_STATECHANGE(i915, I915_UPLOAD_BUFFERS);
if (state)
i915->state.Buffer[I915_DESTREG_SENABLE] =
(_3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT);
else
i915->state.Buffer[I915_DESTREG_SENABLE] =
(_3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT);
break;
case GL_LINE_SMOOTH:
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
if (state)
i915->state.Ctx[I915_CTXREG_LIS4] |= S4_LINE_ANTIALIAS_ENABLE;
else
i915->state.Ctx[I915_CTXREG_LIS4] &= ~S4_LINE_ANTIALIAS_ENABLE;
break;
case GL_FOG:
break;
case GL_CULL_FACE:
i915CullFaceFrontFace(ctx, 0);
break;
case GL_STENCIL_TEST:
{
GLboolean hw_stencil = GL_FALSE;
if (ctx->DrawBuffer) {
struct intel_renderbuffer *irbStencil
= intel_get_renderbuffer(ctx->DrawBuffer, BUFFER_STENCIL);
hw_stencil = (irbStencil && irbStencil->region);
}
if (hw_stencil) {
I915_STATECHANGE(i915, I915_UPLOAD_CTX);
if (state)
i915->state.Ctx[I915_CTXREG_LIS5] |= (S5_STENCIL_TEST_ENABLE |
S5_STENCIL_WRITE_ENABLE);
else
i915->state.Ctx[I915_CTXREG_LIS5] &= ~(S5_STENCIL_TEST_ENABLE |
S5_STENCIL_WRITE_ENABLE);
}
else {
FALLBACK(&i915->intel, I915_FALLBACK_STENCIL, state);
}
}
break;
case GL_POLYGON_STIPPLE:
/* The stipple command worked on my 855GM box, but not my 845G.
* I'll do more testing later to find out exactly which hardware
* supports it. Disabled for now.
*/
if (i915->intel.hw_stipple &&
i915->intel.reduced_primitive == GL_TRIANGLES) {
I915_STATECHANGE(i915, I915_UPLOAD_STIPPLE);
if (state)
i915->state.Stipple[I915_STPREG_ST1] |= ST1_ENABLE;
else
i915->state.Stipple[I915_STPREG_ST1] &= ~ST1_ENABLE;
}
break;
case GL_POLYGON_SMOOTH:
break;
case GL_POINT_SMOOTH:
break;
default:
;
}
}