0,0 → 1,1094 |
/************************************************************************** |
* |
* Copyright 2003 VMware, Inc. |
* All Rights Reserved. |
* |
* Permission is hereby granted, free of charge, to any person obtaining a |
* copy of this software and associated documentation files (the |
* "Software"), to deal in the Software without restriction, including |
* without limitation the rights to use, copy, modify, merge, publish, |
* distribute, sub license, and/or sell copies of the Software, and to |
* permit persons to whom the Software is furnished to do so, subject to |
* the following conditions: |
* |
* The above copyright notice and this permission notice (including the |
* next paragraph) shall be included in all copies or substantial portions |
* of the Software. |
* |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
* |
**************************************************************************/ |
|
|
#include "main/glheader.h" |
#include "main/context.h" |
#include "main/macros.h" |
#include "main/enums.h" |
#include "main/fbobject.h" |
#include "main/dd.h" |
#include "main/state.h" |
#include "main/stencil.h" |
#include "main/viewport.h" |
#include "tnl/tnl.h" |
#include "tnl/t_context.h" |
|
#include "drivers/common/driverfuncs.h" |
|
#include "intel_fbo.h" |
#include "intel_screen.h" |
#include "intel_batchbuffer.h" |
#include "intel_buffers.h" |
|
#include "i915_context.h" |
#include "i915_reg.h" |
|
#define FILE_DEBUG_FLAG DEBUG_STATE |
|
void |
i915_update_stencil(struct gl_context * ctx) |
{ |
struct i915_context *i915 = I915_CONTEXT(ctx); |
GLuint front_ref, front_writemask, front_mask; |
GLenum front_func, front_fail, front_pass_z_fail, front_pass_z_pass; |
GLuint back_ref, back_writemask, back_mask; |
GLenum back_func, back_fail, back_pass_z_fail, back_pass_z_pass; |
GLuint dirty = 0; |
|
/* The 915 considers CW to be "front" for two-sided stencil, so choose |
* appropriately. |
*/ |
/* _NEW_POLYGON | _NEW_STENCIL */ |
if (ctx->Polygon.FrontFace == GL_CW) { |
front_ref = _mesa_get_stencil_ref(ctx, 0); |
front_mask = ctx->Stencil.ValueMask[0]; |
front_writemask = ctx->Stencil.WriteMask[0]; |
front_func = ctx->Stencil.Function[0]; |
front_fail = ctx->Stencil.FailFunc[0]; |
front_pass_z_fail = ctx->Stencil.ZFailFunc[0]; |
front_pass_z_pass = ctx->Stencil.ZPassFunc[0]; |
back_ref = _mesa_get_stencil_ref(ctx, ctx->Stencil._BackFace); |
back_mask = ctx->Stencil.ValueMask[ctx->Stencil._BackFace]; |
back_writemask = ctx->Stencil.WriteMask[ctx->Stencil._BackFace]; |
back_func = ctx->Stencil.Function[ctx->Stencil._BackFace]; |
back_fail = ctx->Stencil.FailFunc[ctx->Stencil._BackFace]; |
back_pass_z_fail = ctx->Stencil.ZFailFunc[ctx->Stencil._BackFace]; |
back_pass_z_pass = ctx->Stencil.ZPassFunc[ctx->Stencil._BackFace]; |
} else { |
front_ref = _mesa_get_stencil_ref(ctx, ctx->Stencil._BackFace); |
front_mask = ctx->Stencil.ValueMask[ctx->Stencil._BackFace]; |
front_writemask = ctx->Stencil.WriteMask[ctx->Stencil._BackFace]; |
front_func = ctx->Stencil.Function[ctx->Stencil._BackFace]; |
front_fail = ctx->Stencil.FailFunc[ctx->Stencil._BackFace]; |
front_pass_z_fail = ctx->Stencil.ZFailFunc[ctx->Stencil._BackFace]; |
front_pass_z_pass = ctx->Stencil.ZPassFunc[ctx->Stencil._BackFace]; |
back_ref = _mesa_get_stencil_ref(ctx, 0); |
back_mask = ctx->Stencil.ValueMask[0]; |
back_writemask = ctx->Stencil.WriteMask[0]; |
back_func = ctx->Stencil.Function[0]; |
back_fail = ctx->Stencil.FailFunc[0]; |
back_pass_z_fail = ctx->Stencil.ZFailFunc[0]; |
back_pass_z_pass = ctx->Stencil.ZPassFunc[0]; |
} |
#define set_ctx_bits(reg, mask, set) do{ \ |
GLuint dw = i915->state.Ctx[reg]; \ |
dw &= ~(mask); \ |
dw |= (set); \ |
dirty |= dw != i915->state.Ctx[reg]; \ |
i915->state.Ctx[reg] = dw; \ |
} while(0) |
|
/* Set front state. */ |
set_ctx_bits(I915_CTXREG_STATE4, |
MODE4_ENABLE_STENCIL_TEST_MASK | |
MODE4_ENABLE_STENCIL_WRITE_MASK, |
ENABLE_STENCIL_TEST_MASK | |
ENABLE_STENCIL_WRITE_MASK | |
STENCIL_TEST_MASK(front_mask) | |
STENCIL_WRITE_MASK(front_writemask)); |
|
set_ctx_bits(I915_CTXREG_LIS5, |
S5_STENCIL_REF_MASK | |
S5_STENCIL_TEST_FUNC_MASK | |
S5_STENCIL_FAIL_MASK | |
S5_STENCIL_PASS_Z_FAIL_MASK | |
S5_STENCIL_PASS_Z_PASS_MASK, |
(front_ref << S5_STENCIL_REF_SHIFT) | |
(intel_translate_compare_func(front_func) << S5_STENCIL_TEST_FUNC_SHIFT) | |
(intel_translate_stencil_op(front_fail) << S5_STENCIL_FAIL_SHIFT) | |
(intel_translate_stencil_op(front_pass_z_fail) << |
S5_STENCIL_PASS_Z_FAIL_SHIFT) | |
(intel_translate_stencil_op(front_pass_z_pass) << |
S5_STENCIL_PASS_Z_PASS_SHIFT)); |
|
/* Set back state if different from front. */ |
if (ctx->Stencil._TestTwoSide) { |
set_ctx_bits(I915_CTXREG_BF_STENCIL_OPS, |
BFO_STENCIL_REF_MASK | |
BFO_STENCIL_TEST_MASK | |
BFO_STENCIL_FAIL_MASK | |
BFO_STENCIL_PASS_Z_FAIL_MASK | |
BFO_STENCIL_PASS_Z_PASS_MASK, |
BFO_STENCIL_TWO_SIDE | |
(back_ref << BFO_STENCIL_REF_SHIFT) | |
(intel_translate_compare_func(back_func) << BFO_STENCIL_TEST_SHIFT) | |
(intel_translate_stencil_op(back_fail) << BFO_STENCIL_FAIL_SHIFT) | |
(intel_translate_stencil_op(back_pass_z_fail) << |
BFO_STENCIL_PASS_Z_FAIL_SHIFT) | |
(intel_translate_stencil_op(back_pass_z_pass) << |
BFO_STENCIL_PASS_Z_PASS_SHIFT)); |
|
set_ctx_bits(I915_CTXREG_BF_STENCIL_MASKS, |
BFM_STENCIL_TEST_MASK_MASK | |
BFM_STENCIL_WRITE_MASK_MASK, |
BFM_STENCIL_TEST_MASK(back_mask) | |
BFM_STENCIL_WRITE_MASK(back_writemask)); |
} else { |
set_ctx_bits(I915_CTXREG_BF_STENCIL_OPS, |
BFO_STENCIL_TWO_SIDE, 0); |
} |
|
#undef set_ctx_bits |
|
if (dirty) |
I915_STATECHANGE(i915, I915_UPLOAD_CTX); |
} |
|
static void |
i915StencilFuncSeparate(struct gl_context * ctx, GLenum face, GLenum func, GLint ref, |
GLuint mask) |
{ |
} |
|
static void |
i915StencilMaskSeparate(struct gl_context * ctx, GLenum face, GLuint mask) |
{ |
} |
|
static void |
i915StencilOpSeparate(struct gl_context * ctx, GLenum face, GLenum fail, GLenum zfail, |
GLenum zpass) |
{ |
} |
|
static void |
i915AlphaFunc(struct gl_context * ctx, GLenum func, GLfloat ref) |
{ |
struct i915_context *i915 = I915_CONTEXT(ctx); |
int test = intel_translate_compare_func(func); |
GLubyte refByte; |
GLuint dw; |
|
UNCLAMPED_FLOAT_TO_UBYTE(refByte, ref); |
|
dw = i915->state.Ctx[I915_CTXREG_LIS6]; |
dw &= ~(S6_ALPHA_TEST_FUNC_MASK | S6_ALPHA_REF_MASK); |
dw |= ((test << S6_ALPHA_TEST_FUNC_SHIFT) | |
(((GLuint) refByte) << S6_ALPHA_REF_SHIFT)); |
if (dw != i915->state.Ctx[I915_CTXREG_LIS6]) { |
i915->state.Ctx[I915_CTXREG_LIS6] = dw; |
I915_STATECHANGE(i915, I915_UPLOAD_CTX); |
} |
} |
|
/* This function makes sure that the proper enables are |
* set for LogicOp, Independent Alpha Blend, and Blending. |
* It needs to be called from numerous places where we |
* could change the LogicOp or Independent 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 |
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", __func__); |
|
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); |
} |
} |
|
|
#define DST_BLND_FACT(f) ((f)<<S6_CBUF_DST_BLEND_FACT_SHIFT) |
#define SRC_BLND_FACT(f) ((f)<<S6_CBUF_SRC_BLEND_FACT_SHIFT) |
#define DST_ABLND_FACT(f) ((f)<<IAB_DST_FACTOR_SHIFT) |
#define SRC_ABLND_FACT(f) ((f)<<IAB_SRC_FACTOR_SHIFT) |
|
|
|
static GLuint |
translate_blend_equation(GLenum mode) |
{ |
switch (mode) { |
case GL_FUNC_ADD: |
return BLENDFUNC_ADD; |
case GL_MIN: |
return BLENDFUNC_MIN; |
case GL_MAX: |
return BLENDFUNC_MAX; |
case GL_FUNC_SUBTRACT: |
return BLENDFUNC_SUBTRACT; |
case GL_FUNC_REVERSE_SUBTRACT: |
return BLENDFUNC_REVERSE_SUBTRACT; |
default: |
return 0; |
} |
} |
|
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 |
i915BlendFuncSeparate(struct gl_context * ctx, GLenum srcRGB, |
GLenum dstRGB, GLenum srcA, GLenum dstA) |
{ |
i915UpdateBlendState(ctx); |
} |
|
|
static void |
i915BlendEquationSeparate(struct gl_context * ctx, GLenum eqRGB, GLenum eqA) |
{ |
i915UpdateBlendState(ctx); |
} |
|
|
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", __func__); |
|
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 |
i915DepthMask(struct gl_context * ctx, GLboolean flag) |
{ |
struct i915_context *i915 = I915_CONTEXT(ctx); |
GLuint dw; |
|
DBG("%s flag (%d)\n", __func__, 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; |
} |
} |
|
|
|
/** |
* Update the viewport transformation matrix. Depends on: |
* - viewport pos/size |
* - depthrange |
* - window pos/size or FBO size |
*/ |
void |
intelCalcViewport(struct gl_context * ctx) |
{ |
struct intel_context *intel = intel_context(ctx); |
double scale[3], translate[3]; |
|
_mesa_get_viewport_xform(ctx, 0, scale, translate); |
|
if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) { |
scale[1] = -scale[1]; |
translate[1] = ctx->DrawBuffer->Height - translate[1]; |
} |
|
_math_matrix_viewport(&intel->ViewportMatrix, |
scale, translate, 1.0); |
} |
|
|
/** Called from ctx->Driver.DepthRange() */ |
static void |
i915DepthRange(struct gl_context *ctx) |
{ |
intelCalcViewport(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; |
} |
|
|
/* ============================================================= |
* Hardware clipping |
*/ |
static void |
i915Scissor(struct gl_context * ctx) |
{ |
struct i915_context *i915 = I915_CONTEXT(ctx); |
int x1, y1, x2, y2; |
|
if (!ctx->DrawBuffer) |
return; |
|
DBG("%s %d,%d %dx%d\n", __func__, |
ctx->Scissor.ScissorArray[0].X, ctx->Scissor.ScissorArray[0].Y, |
ctx->Scissor.ScissorArray[0].Width, ctx->Scissor.ScissorArray[0].Height); |
|
if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) { |
x1 = ctx->Scissor.ScissorArray[0].X; |
y1 = ctx->DrawBuffer->Height - (ctx->Scissor.ScissorArray[0].Y |
+ ctx->Scissor.ScissorArray[0].Height); |
x2 = ctx->Scissor.ScissorArray[0].X |
+ ctx->Scissor.ScissorArray[0].Width - 1; |
y2 = y1 + ctx->Scissor.ScissorArray[0].Height - 1; |
DBG("%s %d..%d,%d..%d (inverted)\n", __func__, x1, x2, y1, y2); |
} |
else { |
/* FBO - not inverted |
*/ |
x1 = ctx->Scissor.ScissorArray[0].X; |
y1 = ctx->Scissor.ScissorArray[0].Y; |
x2 = ctx->Scissor.ScissorArray[0].X |
+ ctx->Scissor.ScissorArray[0].Width - 1; |
y2 = ctx->Scissor.ScissorArray[0].Y |
+ ctx->Scissor.ScissorArray[0].Height - 1; |
DBG("%s %d..%d,%d..%d (not inverted)\n", __func__, 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", __func__, 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); |
} |
|
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", __func__); |
|
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 |
i915CullFaceFrontFace(struct gl_context * ctx, GLenum unused) |
{ |
struct i915_context *i915 = I915_CONTEXT(ctx); |
GLuint mode, dw; |
|
DBG("%s %d\n", __func__, |
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 && _mesa_is_user_fbo(ctx->DrawBuffer)) |
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); |
} |
} |
|
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", __func__); |
|
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 |
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", __func__); |
|
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 |
i915PointParameterfv(struct gl_context * ctx, GLenum pname, const GLfloat *params) |
{ |
struct i915_context *i915 = I915_CONTEXT(ctx); |
|
switch (pname) { |
case GL_POINT_SPRITE_COORD_ORIGIN: |
/* This could be supported, but it would require modifying the fragment |
* program to invert the y component of the texture coordinate by |
* inserting a 'SUB tc.y, {1.0}.xxxx, tc' instruction. |
*/ |
FALLBACK(&i915->intel, I915_FALLBACK_POINT_SPRITE_COORD_ORIGIN, |
(params[0] != GL_UPPER_LEFT)); |
break; |
} |
} |
|
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 & VARYING_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); |
} |
} |
|
|
/* ============================================================= |
* Color masks |
*/ |
|
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", __func__, 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; |
} |
} |
|
static void |
update_specular(struct gl_context * ctx) |
{ |
/* A hack to trigger the rebuild of the fragment program. |
*/ |
intel_context(ctx)->NewGLState |= _NEW_TEXTURE; |
} |
|
static void |
i915LightModelfv(struct gl_context * ctx, GLenum pname, const GLfloat * param) |
{ |
DBG("%s\n", __func__); |
|
if (pname == GL_LIGHT_MODEL_COLOR_CONTROL) { |
update_specular(ctx); |
} |
} |
|
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); |
} |
} |
|
/* ============================================================= |
* Fog |
* |
* This empty function remains because _mesa_init_driver_state calls |
* dd_function_table::Fogfv unconditionally. We have to have some function |
* there so that it doesn't try to call a NULL pointer. |
*/ |
static void |
i915Fogfv(struct gl_context * ctx, GLenum pname, const GLfloat * param) |
{ |
(void) ctx; |
(void) pname; |
(void) param; |
} |
|
/* ============================================================= |
*/ |
|
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 |
i915_init_packets(struct i915_context *i915) |
{ |
/* Zero all state */ |
memset(&i915->state, 0, sizeof(i915->state)); |
|
|
{ |
I915_STATECHANGE(i915, I915_UPLOAD_CTX); |
I915_STATECHANGE(i915, I915_UPLOAD_BLEND); |
/* Probably don't want to upload all this stuff every time one |
* piece changes. |
*/ |
i915->state.Ctx[I915_CTXREG_LI] = (_3DSTATE_LOAD_STATE_IMMEDIATE_1 | |
I1_LOAD_S(2) | |
I1_LOAD_S(4) | |
I1_LOAD_S(5) | I1_LOAD_S(6) | (3)); |
i915->state.Ctx[I915_CTXREG_LIS2] = 0; |
i915->state.Ctx[I915_CTXREG_LIS4] = 0; |
i915->state.Ctx[I915_CTXREG_LIS5] = 0; |
|
if (i915->intel.ctx.Visual.rgbBits == 16) |
i915->state.Ctx[I915_CTXREG_LIS5] |= S5_COLOR_DITHER_ENABLE; |
|
|
i915->state.Ctx[I915_CTXREG_LIS6] = (S6_COLOR_WRITE_ENABLE | |
(2 << S6_TRISTRIP_PV_SHIFT)); |
|
i915->state.Ctx[I915_CTXREG_STATE4] = (_3DSTATE_MODES_4_CMD | |
ENABLE_LOGIC_OP_FUNC | |
LOGIC_OP_FUNC(LOGICOP_COPY) | |
ENABLE_STENCIL_TEST_MASK | |
STENCIL_TEST_MASK(0xff) | |
ENABLE_STENCIL_WRITE_MASK | |
STENCIL_WRITE_MASK(0xff)); |
|
i915->state.Blend[I915_BLENDREG_IAB] = |
(_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | IAB_MODIFY_ENABLE | |
IAB_MODIFY_FUNC | IAB_MODIFY_SRC_FACTOR | IAB_MODIFY_DST_FACTOR); |
|
i915->state.Blend[I915_BLENDREG_BLENDCOLOR0] = |
_3DSTATE_CONST_BLEND_COLOR_CMD; |
i915->state.Blend[I915_BLENDREG_BLENDCOLOR1] = 0; |
|
i915->state.Ctx[I915_CTXREG_BF_STENCIL_MASKS] = |
_3DSTATE_BACKFACE_STENCIL_MASKS | |
BFM_ENABLE_STENCIL_TEST_MASK | |
BFM_ENABLE_STENCIL_WRITE_MASK | |
(0xff << BFM_STENCIL_WRITE_MASK_SHIFT) | |
(0xff << BFM_STENCIL_TEST_MASK_SHIFT); |
i915->state.Ctx[I915_CTXREG_BF_STENCIL_OPS] = |
_3DSTATE_BACKFACE_STENCIL_OPS | |
BFO_ENABLE_STENCIL_REF | |
BFO_ENABLE_STENCIL_FUNCS | |
BFO_ENABLE_STENCIL_TWO_SIDE; |
} |
|
{ |
I915_STATECHANGE(i915, I915_UPLOAD_STIPPLE); |
i915->state.Stipple[I915_STPREG_ST0] = _3DSTATE_STIPPLE; |
} |
|
{ |
i915->state.Buffer[I915_DESTREG_DV0] = _3DSTATE_DST_BUF_VARS_CMD; |
|
/* scissor */ |
i915->state.Buffer[I915_DESTREG_SR0] = _3DSTATE_SCISSOR_RECT_0_CMD; |
i915->state.Buffer[I915_DESTREG_SR1] = 0; |
i915->state.Buffer[I915_DESTREG_SR2] = 0; |
i915->state.Buffer[I915_DESTREG_SENABLE] = |
(_3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT); |
} |
|
i915->state.RasterRules[I915_RASTER_RULES] = _3DSTATE_RASTER_RULES_CMD | |
ENABLE_POINT_RASTER_RULE | |
OGL_POINT_RASTER_RULE | |
ENABLE_LINE_STRIP_PROVOKE_VRTX | |
ENABLE_TRI_FAN_PROVOKE_VRTX | |
LINE_STRIP_PROVOKE_VRTX(1) | |
TRI_FAN_PROVOKE_VRTX(2) | ENABLE_TEXKILL_3D_4D | TEXKILL_4D; |
|
#if 0 |
{ |
I915_STATECHANGE(i915, I915_UPLOAD_DEFAULTS); |
i915->state.Default[I915_DEFREG_C0] = _3DSTATE_DEFAULT_DIFFUSE; |
i915->state.Default[I915_DEFREG_C1] = 0; |
i915->state.Default[I915_DEFREG_S0] = _3DSTATE_DEFAULT_SPECULAR; |
i915->state.Default[I915_DEFREG_S1] = 0; |
i915->state.Default[I915_DEFREG_Z0] = _3DSTATE_DEFAULT_Z; |
i915->state.Default[I915_DEFREG_Z1] = 0; |
} |
#endif |
|
|
/* These will be emitted every at the head of every buffer, unless |
* we get hardware contexts working. |
*/ |
i915->state.active = (I915_UPLOAD_PROGRAM | |
I915_UPLOAD_STIPPLE | |
I915_UPLOAD_CTX | |
I915_UPLOAD_BLEND | |
I915_UPLOAD_BUFFERS | |
I915_UPLOAD_INVARIENT | |
I915_UPLOAD_RASTER_RULES); |
} |
|
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); |
} |
} |
|
/* Fallback to swrast for select and feedback. |
*/ |
static void |
i915RenderMode(struct gl_context *ctx, GLenum mode) |
{ |
struct intel_context *intel = intel_context(ctx); |
FALLBACK(intel, INTEL_FALLBACK_RENDERMODE, (mode != GL_RENDER)); |
} |
|
void |
i915InitStateFunctions(struct dd_function_table *functions) |
{ |
functions->AlphaFunc = i915AlphaFunc; |
functions->BlendColor = i915BlendColor; |
functions->BlendEquationSeparate = i915BlendEquationSeparate; |
functions->BlendFuncSeparate = i915BlendFuncSeparate; |
functions->ColorMask = i915ColorMask; |
functions->CullFace = i915CullFaceFrontFace; |
functions->DepthFunc = i915DepthFunc; |
functions->DepthMask = i915DepthMask; |
functions->Enable = i915Enable; |
functions->Fogfv = i915Fogfv; |
functions->FrontFace = i915CullFaceFrontFace; |
functions->LightModelfv = i915LightModelfv; |
functions->LineWidth = i915LineWidth; |
functions->LogicOpcode = i915LogicOp; |
functions->PointSize = i915PointSize; |
functions->PointParameterfv = i915PointParameterfv; |
functions->PolygonStipple = i915PolygonStipple; |
functions->RenderMode = i915RenderMode; |
functions->Scissor = i915Scissor; |
functions->ShadeModel = i915ShadeModel; |
functions->StencilFuncSeparate = i915StencilFuncSeparate; |
functions->StencilMaskSeparate = i915StencilMaskSeparate; |
functions->StencilOpSeparate = i915StencilOpSeparate; |
functions->DepthRange = i915DepthRange; |
} |
|
|
void |
i915InitState(struct i915_context *i915) |
{ |
struct gl_context *ctx = &i915->intel.ctx; |
|
i915_init_packets(i915); |
|
_mesa_init_driver_state(ctx); |
} |