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path: root/src/mesa/drivers/dri/i915tex/i830_state.c
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Diffstat (limited to 'src/mesa/drivers/dri/i915tex/i830_state.c')
-rw-r--r--src/mesa/drivers/dri/i915tex/i830_state.c1106
1 files changed, 0 insertions, 1106 deletions
diff --git a/src/mesa/drivers/dri/i915tex/i830_state.c b/src/mesa/drivers/dri/i915tex/i830_state.c
deleted file mode 100644
index 490d681429..0000000000
--- a/src/mesa/drivers/dri/i915tex/i830_state.c
+++ /dev/null
@@ -1,1106 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
- * 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 TUNGSTEN GRAPHICS 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 "glheader.h"
-#include "context.h"
-#include "macros.h"
-#include "enums.h"
-#include "dd.h"
-
-#include "texmem.h"
-
-#include "drivers/common/driverfuncs.h"
-
-#include "intel_screen.h"
-#include "intel_batchbuffer.h"
-#include "intel_fbo.h"
-
-#include "i830_context.h"
-#include "i830_reg.h"
-
-#define FILE_DEBUG_FLAG DEBUG_STATE
-
-static void
-i830StencilFuncSeparate(GLcontext * ctx, GLenum face, GLenum func, GLint ref,
- GLuint mask)
-{
- struct i830_context *i830 = i830_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);
-
-
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_STATE4] &= ~MODE4_ENABLE_STENCIL_TEST_MASK;
- i830->state.Ctx[I830_CTXREG_STATE4] |= (ENABLE_STENCIL_TEST_MASK |
- STENCIL_TEST_MASK(mask));
- i830->state.Ctx[I830_CTXREG_STENCILTST] &= ~(STENCIL_REF_VALUE_MASK |
- ENABLE_STENCIL_TEST_FUNC_MASK);
- i830->state.Ctx[I830_CTXREG_STENCILTST] |= (ENABLE_STENCIL_REF_VALUE |
- ENABLE_STENCIL_TEST_FUNC |
- STENCIL_REF_VALUE(ref) |
- STENCIL_TEST_FUNC(test));
-}
-
-static void
-i830StencilMaskSeparate(GLcontext * ctx, GLenum face, GLuint mask)
-{
- struct i830_context *i830 = i830_context(ctx);
-
- DBG("%s : mask 0x%x\n", __FUNCTION__, mask);
-
- mask = mask & 0xff;
-
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_STATE4] &= ~MODE4_ENABLE_STENCIL_WRITE_MASK;
- i830->state.Ctx[I830_CTXREG_STATE4] |= (ENABLE_STENCIL_WRITE_MASK |
- STENCIL_WRITE_MASK(mask));
-}
-
-static void
-i830StencilOpSeparate(GLcontext * ctx, GLenum face, GLenum fail, GLenum zfail,
- GLenum zpass)
-{
- struct i830_context *i830 = i830_context(ctx);
- int fop, dfop, dpop;
-
- 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));
-
- fop = 0;
- dfop = 0;
- dpop = 0;
-
- switch (fail) {
- case GL_KEEP:
- fop = STENCILOP_KEEP;
- break;
- case GL_ZERO:
- fop = STENCILOP_ZERO;
- break;
- case GL_REPLACE:
- fop = STENCILOP_REPLACE;
- break;
- case GL_INCR:
- fop = STENCILOP_INCRSAT;
- break;
- case GL_DECR:
- fop = STENCILOP_DECRSAT;
- break;
- case GL_INCR_WRAP:
- fop = STENCILOP_INCR;
- break;
- case GL_DECR_WRAP:
- fop = STENCILOP_DECR;
- break;
- case GL_INVERT:
- fop = STENCILOP_INVERT;
- break;
- default:
- break;
- }
- switch (zfail) {
- case GL_KEEP:
- dfop = STENCILOP_KEEP;
- break;
- case GL_ZERO:
- dfop = STENCILOP_ZERO;
- break;
- case GL_REPLACE:
- dfop = STENCILOP_REPLACE;
- break;
- case GL_INCR:
- dfop = STENCILOP_INCRSAT;
- break;
- case GL_DECR:
- dfop = STENCILOP_DECRSAT;
- break;
- case GL_INCR_WRAP:
- dfop = STENCILOP_INCR;
- break;
- case GL_DECR_WRAP:
- dfop = STENCILOP_DECR;
- break;
- case GL_INVERT:
- dfop = STENCILOP_INVERT;
- break;
- default:
- break;
- }
- switch (zpass) {
- case GL_KEEP:
- dpop = STENCILOP_KEEP;
- break;
- case GL_ZERO:
- dpop = STENCILOP_ZERO;
- break;
- case GL_REPLACE:
- dpop = STENCILOP_REPLACE;
- break;
- case GL_INCR:
- dpop = STENCILOP_INCRSAT;
- break;
- case GL_DECR:
- dpop = STENCILOP_DECRSAT;
- break;
- case GL_INCR_WRAP:
- dpop = STENCILOP_INCR;
- break;
- case GL_DECR_WRAP:
- dpop = STENCILOP_DECR;
- break;
- case GL_INVERT:
- dpop = STENCILOP_INVERT;
- break;
- default:
- break;
- }
-
-
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_STENCILTST] &= ~(STENCIL_OPS_MASK);
- i830->state.Ctx[I830_CTXREG_STENCILTST] |= (ENABLE_STENCIL_PARMS |
- STENCIL_FAIL_OP(fop) |
- STENCIL_PASS_DEPTH_FAIL_OP
- (dfop) |
- STENCIL_PASS_DEPTH_PASS_OP
- (dpop));
-}
-
-static void
-i830AlphaFunc(GLcontext * ctx, GLenum func, GLfloat ref)
-{
- struct i830_context *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));
-}
-
-/**
- * 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.
- *
- * \todo
- * This function is substantially different from the old i830-specific driver.
- * I'm not sure which is correct.
- */
-static void
-i830EvalLogicOpBlendState(GLcontext * ctx)
-{
- struct i830_context *i830 = i830_context(ctx);
-
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
-
- if (RGBA_LOGICOP_ENABLED(ctx)) {
- i830->state.Ctx[I830_CTXREG_ENABLES_1] &= ~(ENABLE_COLOR_BLEND |
- ENABLE_LOGIC_OP_MASK);
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= (DISABLE_COLOR_BLEND |
- ENABLE_LOGIC_OP);
- }
- else if (ctx->Color.BlendEnabled) {
- i830->state.Ctx[I830_CTXREG_ENABLES_1] &= ~(ENABLE_COLOR_BLEND |
- ENABLE_LOGIC_OP_MASK);
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= (ENABLE_COLOR_BLEND |
- DISABLE_LOGIC_OP);
- }
- else {
- i830->state.Ctx[I830_CTXREG_ENABLES_1] &= ~(ENABLE_COLOR_BLEND |
- ENABLE_LOGIC_OP_MASK);
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= (DISABLE_COLOR_BLEND |
- DISABLE_LOGIC_OP);
- }
-}
-
-static void
-i830BlendColor(GLcontext * 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;
-}
-
-/**
- * Sets both the blend equation (called "function" in i830 docs) and the
- * blend function (called "factor" in i830 docs). This is done in a single
- * function because some blend equations (i.e., \c GL_MIN and \c GL_MAX)
- * change the interpretation of the blend function.
- */
-static void
-i830_set_blend_state(GLcontext * ctx)
-{
- struct i830_context *i830 = i830_context(ctx);
- int funcA;
- int funcRGB;
- int eqnA;
- int eqnRGB;
- int iab;
- int s1;
-
-
- funcRGB =
- SRC_BLND_FACT(intel_translate_blend_factor(ctx->Color.BlendSrcRGB))
- | DST_BLND_FACT(intel_translate_blend_factor(ctx->Color.BlendDstRGB));
-
- switch (ctx->Color.BlendEquationRGB) {
- case GL_FUNC_ADD:
- eqnRGB = BLENDFUNC_ADD;
- break;
- case GL_MIN:
- eqnRGB = BLENDFUNC_MIN;
- funcRGB = SRC_BLND_FACT(BLENDFACT_ONE) | DST_BLND_FACT(BLENDFACT_ONE);
- break;
- case GL_MAX:
- eqnRGB = BLENDFUNC_MAX;
- funcRGB = SRC_BLND_FACT(BLENDFACT_ONE) | DST_BLND_FACT(BLENDFACT_ONE);
- break;
- case GL_FUNC_SUBTRACT:
- eqnRGB = BLENDFUNC_SUB;
- break;
- case GL_FUNC_REVERSE_SUBTRACT:
- eqnRGB = BLENDFUNC_RVRSE_SUB;
- break;
- default:
- fprintf(stderr, "[%s:%u] Invalid RGB blend equation (0x%04x).\n",
- __FUNCTION__, __LINE__, ctx->Color.BlendEquationRGB);
- return;
- }
-
-
- funcA = SRC_ABLEND_FACT(intel_translate_blend_factor(ctx->Color.BlendSrcA))
- | DST_ABLEND_FACT(intel_translate_blend_factor(ctx->Color.BlendDstA));
-
- switch (ctx->Color.BlendEquationA) {
- case GL_FUNC_ADD:
- eqnA = BLENDFUNC_ADD;
- break;
- case GL_MIN:
- eqnA = BLENDFUNC_MIN;
- funcA = SRC_BLND_FACT(BLENDFACT_ONE) | DST_BLND_FACT(BLENDFACT_ONE);
- break;
- case GL_MAX:
- eqnA = BLENDFUNC_MAX;
- funcA = SRC_BLND_FACT(BLENDFACT_ONE) | DST_BLND_FACT(BLENDFACT_ONE);
- break;
- case GL_FUNC_SUBTRACT:
- eqnA = BLENDFUNC_SUB;
- break;
- case GL_FUNC_REVERSE_SUBTRACT:
- eqnA = BLENDFUNC_RVRSE_SUB;
- break;
- default:
- fprintf(stderr, "[%s:%u] Invalid alpha blend equation (0x%04x).\n",
- __FUNCTION__, __LINE__, ctx->Color.BlendEquationA);
- return;
- }
-
- iab = eqnA | funcA
- | _3DSTATE_INDPT_ALPHA_BLEND_CMD
- | ENABLE_SRC_ABLEND_FACTOR | ENABLE_DST_ABLEND_FACTOR
- | ENABLE_ALPHA_BLENDFUNC;
- s1 = eqnRGB | funcRGB
- | _3DSTATE_MODES_1_CMD
- | ENABLE_SRC_BLND_FACTOR | ENABLE_DST_BLND_FACTOR
- | ENABLE_COLR_BLND_FUNC;
-
- if ((eqnA | funcA) != (eqnRGB | funcRGB))
- iab |= ENABLE_INDPT_ALPHA_BLEND;
- else
- iab |= DISABLE_INDPT_ALPHA_BLEND;
-
- if (iab != i830->state.Ctx[I830_CTXREG_IALPHAB] ||
- s1 != i830->state.Ctx[I830_CTXREG_STATE1]) {
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_IALPHAB] = iab;
- i830->state.Ctx[I830_CTXREG_STATE1] = s1;
- }
-
- /* This will catch a logicop blend equation. It will also ensure
- * independant alpha blend is really in the correct state (either enabled
- * or disabled) if blending is already enabled.
- */
-
- i830EvalLogicOpBlendState(ctx);
-
- if (0) {
- fprintf(stderr,
- "[%s:%u] STATE1: 0x%08x IALPHAB: 0x%08x blend is %sabled\n",
- __FUNCTION__, __LINE__, i830->state.Ctx[I830_CTXREG_STATE1],
- i830->state.Ctx[I830_CTXREG_IALPHAB],
- (ctx->Color.BlendEnabled) ? "en" : "dis");
- }
-}
-
-
-static void
-i830BlendEquationSeparate(GLcontext * ctx, GLenum modeRGB, GLenum modeA)
-{
- DBG("%s -> %s, %s\n", __FUNCTION__,
- _mesa_lookup_enum_by_nr(modeRGB),
- _mesa_lookup_enum_by_nr(modeA));
-
- (void) modeRGB;
- (void) modeA;
- i830_set_blend_state(ctx);
-}
-
-
-static void
-i830BlendFuncSeparate(GLcontext * ctx, GLenum sfactorRGB,
- GLenum dfactorRGB, GLenum sfactorA, GLenum dfactorA)
-{
- DBG("%s -> RGB(%s, %s) A(%s, %s)\n", __FUNCTION__,
- _mesa_lookup_enum_by_nr(sfactorRGB),
- _mesa_lookup_enum_by_nr(dfactorRGB),
- _mesa_lookup_enum_by_nr(sfactorA),
- _mesa_lookup_enum_by_nr(dfactorA));
-
- (void) sfactorRGB;
- (void) dfactorRGB;
- (void) sfactorA;
- (void) dfactorA;
- i830_set_blend_state(ctx);
-}
-
-
-
-static void
-i830DepthFunc(GLcontext * ctx, GLenum func)
-{
- struct i830_context *i830 = i830_context(ctx);
- int test = intel_translate_compare_func(func);
-
- DBG("%s\n", __FUNCTION__);
-
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_STATE3] &= ~DEPTH_TEST_FUNC_MASK;
- i830->state.Ctx[I830_CTXREG_STATE3] |= (ENABLE_DEPTH_TEST_FUNC |
- DEPTH_TEST_FUNC(test));
-}
-
-static void
-i830DepthMask(GLcontext * ctx, GLboolean flag)
-{
- struct i830_context *i830 = i830_context(ctx);
-
- DBG("%s flag (%d)\n", __FUNCTION__, flag);
-
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
-
- i830->state.Ctx[I830_CTXREG_ENABLES_2] &= ~ENABLE_DIS_DEPTH_WRITE_MASK;
-
- if (flag && ctx->Depth.Test)
- i830->state.Ctx[I830_CTXREG_ENABLES_2] |= ENABLE_DEPTH_WRITE;
- else
- i830->state.Ctx[I830_CTXREG_ENABLES_2] |= DISABLE_DEPTH_WRITE;
-}
-
-/* =============================================================
- * Polygon stipple
- *
- * The i830 supports a 4x4 stipple natively, GL wants 32x32.
- * Fortunately stipple is usually a repeating pattern.
- */
-static void
-i830PolygonStipple(GLcontext * ctx, const GLubyte * mask)
-{
- struct i830_context *i830 = i830_context(ctx);
- const GLubyte *m = mask;
- GLubyte p[4];
- int i, j, k;
- int active = (ctx->Polygon.StippleFlag &&
- i830->intel.reduced_primitive == GL_TRIANGLES);
- GLuint newMask;
-
- if (active) {
- I830_STATECHANGE(i830, I830_UPLOAD_STIPPLE);
- i830->state.Stipple[I830_STPREG_ST1] &= ~ST1_ENABLE;
- }
-
- 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]) {
- i830->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 */
- i830->intel.hw_stipple = 0;
- return;
- }
-
- i830->state.Stipple[I830_STPREG_ST1] &= ~0xffff;
- i830->state.Stipple[I830_STPREG_ST1] |= newMask;
- i830->intel.hw_stipple = 1;
-
- if (active)
- i830->state.Stipple[I830_STPREG_ST1] |= ST1_ENABLE;
-}
-
-
-/* =============================================================
- * Hardware clipping
- */
-static void
-i830Scissor(GLcontext * ctx, GLint x, GLint y, GLsizei w, GLsizei h)
-{
- struct i830_context *i830 = i830_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);
-
- I830_STATECHANGE(i830, I830_UPLOAD_BUFFERS);
- i830->state.Buffer[I830_DESTREG_SR1] = (y1 << 16) | (x1 & 0xffff);
- i830->state.Buffer[I830_DESTREG_SR2] = (y2 << 16) | (x2 & 0xffff);
-}
-
-static void
-i830LogicOp(GLcontext * ctx, GLenum opcode)
-{
- struct i830_context *i830 = i830_context(ctx);
- int tmp = intel_translate_logic_op(opcode);
-
- DBG("%s\n", __FUNCTION__);
-
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_STATE4] &= ~LOGICOP_MASK;
- i830->state.Ctx[I830_CTXREG_STATE4] |= LOGIC_OP_FUNC(tmp);
-}
-
-
-
-static void
-i830CullFaceFrontFace(GLcontext * ctx, GLenum unused)
-{
- struct i830_context *i830 = i830_context(ctx);
- GLuint mode;
-
- DBG("%s\n", __FUNCTION__);
-
- if (!ctx->Polygon.CullFlag) {
- mode = CULLMODE_NONE;
- }
- else if (ctx->Polygon.CullFaceMode != GL_FRONT_AND_BACK) {
- mode = CULLMODE_CW;
-
- if (ctx->Polygon.CullFaceMode == GL_FRONT)
- mode ^= (CULLMODE_CW ^ CULLMODE_CCW);
- if (ctx->Polygon.FrontFace != GL_CCW)
- mode ^= (CULLMODE_CW ^ CULLMODE_CCW);
- }
- else {
- mode = CULLMODE_BOTH;
- }
-
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_STATE3] &= ~CULLMODE_MASK;
- i830->state.Ctx[I830_CTXREG_STATE3] |= ENABLE_CULL_MODE | mode;
-}
-
-static void
-i830LineWidth(GLcontext * ctx, GLfloat widthf)
-{
- struct i830_context *i830 = i830_context(ctx);
- int width;
- int state5;
-
- DBG("%s\n", __FUNCTION__);
-
- width = (int) (widthf * 2);
- CLAMP_SELF(width, 1, 15);
-
- state5 = i830->state.Ctx[I830_CTXREG_STATE5] & ~FIXED_LINE_WIDTH_MASK;
- state5 |= (ENABLE_FIXED_LINE_WIDTH | FIXED_LINE_WIDTH(width));
-
- if (state5 != i830->state.Ctx[I830_CTXREG_STATE5]) {
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_STATE5] = state5;
- }
-}
-
-static void
-i830PointSize(GLcontext * ctx, GLfloat size)
-{
- struct i830_context *i830 = i830_context(ctx);
- GLint point_size = (int) size;
-
- DBG("%s\n", __FUNCTION__);
-
- CLAMP_SELF(point_size, 1, 256);
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_STATE5] &= ~FIXED_POINT_WIDTH_MASK;
- i830->state.Ctx[I830_CTXREG_STATE5] |= (ENABLE_FIXED_POINT_WIDTH |
- FIXED_POINT_WIDTH(point_size));
-}
-
-
-/* =============================================================
- * Color masks
- */
-
-static void
-i830ColorMask(GLcontext * ctx,
- GLboolean r, GLboolean g, GLboolean b, GLboolean a)
-{
- struct i830_context *i830 = i830_context(ctx);
- GLuint tmp = 0;
-
- DBG("%s r(%d) g(%d) b(%d) a(%d)\n", __FUNCTION__, r, g, b, a);
-
- tmp = ((i830->state.Ctx[I830_CTXREG_ENABLES_2] & ~WRITEMASK_MASK) |
- ENABLE_COLOR_MASK |
- ENABLE_COLOR_WRITE |
- ((!r) << WRITEMASK_RED_SHIFT) |
- ((!g) << WRITEMASK_GREEN_SHIFT) |
- ((!b) << WRITEMASK_BLUE_SHIFT) | ((!a) << WRITEMASK_ALPHA_SHIFT));
-
- if (tmp != i830->state.Ctx[I830_CTXREG_ENABLES_2]) {
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_ENABLES_2] = tmp;
- }
-}
-
-static void
-update_specular(GLcontext * ctx)
-{
- struct i830_context *i830 = i830_context(ctx);
-
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_ENABLES_1] &= ~ENABLE_SPEC_ADD_MASK;
-
- if (NEED_SECONDARY_COLOR(ctx))
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= ENABLE_SPEC_ADD;
- else
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= DISABLE_SPEC_ADD;
-}
-
-static void
-i830LightModelfv(GLcontext * ctx, GLenum pname, const GLfloat * param)
-{
- DBG("%s\n", __FUNCTION__);
-
- if (pname == GL_LIGHT_MODEL_COLOR_CONTROL) {
- update_specular(ctx);
- }
-}
-
-/* In Mesa 3.5 we can reliably do native flatshading.
- */
-static void
-i830ShadeModel(GLcontext * ctx, GLenum mode)
-{
- struct i830_context *i830 = i830_context(ctx);
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
-
-
-#define SHADE_MODE_MASK ((1<<10)|(1<<8)|(1<<6)|(1<<4))
-
- i830->state.Ctx[I830_CTXREG_STATE3] &= ~SHADE_MODE_MASK;
-
- if (mode == GL_FLAT) {
- i830->state.Ctx[I830_CTXREG_STATE3] |=
- (ALPHA_SHADE_MODE(SHADE_MODE_FLAT) | FOG_SHADE_MODE(SHADE_MODE_FLAT)
- | SPEC_SHADE_MODE(SHADE_MODE_FLAT) |
- COLOR_SHADE_MODE(SHADE_MODE_FLAT));
- }
- else {
- i830->state.Ctx[I830_CTXREG_STATE3] |=
- (ALPHA_SHADE_MODE(SHADE_MODE_LINEAR) |
- FOG_SHADE_MODE(SHADE_MODE_LINEAR) |
- SPEC_SHADE_MODE(SHADE_MODE_LINEAR) |
- COLOR_SHADE_MODE(SHADE_MODE_LINEAR));
- }
-}
-
-/* =============================================================
- * Fog
- */
-static void
-i830Fogfv(GLcontext * ctx, GLenum pname, const GLfloat * param)
-{
- struct i830_context *i830 = i830_context(ctx);
-
- DBG("%s\n", __FUNCTION__);
-
- if (pname == GL_FOG_COLOR) {
- GLuint color = (((GLubyte) (ctx->Fog.Color[0] * 255.0F) << 16) |
- ((GLubyte) (ctx->Fog.Color[1] * 255.0F) << 8) |
- ((GLubyte) (ctx->Fog.Color[2] * 255.0F) << 0));
-
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_FOGCOLOR] =
- (_3DSTATE_FOG_COLOR_CMD | color);
- }
-}
-
-/* =============================================================
- */
-
-static void
-i830Enable(GLcontext * ctx, GLenum cap, GLboolean state)
-{
- struct i830_context *i830 = i830_context(ctx);
-
- switch (cap) {
- case GL_LIGHTING:
- case GL_COLOR_SUM:
- update_specular(ctx);
- break;
-
- case GL_ALPHA_TEST:
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_ENABLES_1] &= ~ENABLE_DIS_ALPHA_TEST_MASK;
- if (state)
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= ENABLE_ALPHA_TEST;
- else
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= DISABLE_ALPHA_TEST;
-
- break;
-
- case GL_BLEND:
- i830EvalLogicOpBlendState(ctx);
- break;
-
- case GL_COLOR_LOGIC_OP:
- i830EvalLogicOpBlendState(ctx);
-
- /* Logicop doesn't seem to work at 16bpp:
- */
- if (i830->intel.intelScreen->cpp == 2)
- FALLBACK(&i830->intel, I830_FALLBACK_LOGICOP, state);
- break;
-
- case GL_DITHER:
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_ENABLES_2] &= ~ENABLE_DITHER;
-
- if (state)
- i830->state.Ctx[I830_CTXREG_ENABLES_2] |= ENABLE_DITHER;
- else
- i830->state.Ctx[I830_CTXREG_ENABLES_2] |= DISABLE_DITHER;
- break;
-
- case GL_DEPTH_TEST:
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_ENABLES_1] &= ~ENABLE_DIS_DEPTH_TEST_MASK;
-
- if (state)
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= ENABLE_DEPTH_TEST;
- else
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= DISABLE_DEPTH_TEST;
-
- /* Also turn off depth writes when GL_DEPTH_TEST is disabled:
- */
- i830DepthMask(ctx, ctx->Depth.Mask);
- break;
-
- case GL_SCISSOR_TEST:
- I830_STATECHANGE(i830, I830_UPLOAD_BUFFERS);
-
- if (state)
- i830->state.Buffer[I830_DESTREG_SENABLE] =
- (_3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT);
- else
- i830->state.Buffer[I830_DESTREG_SENABLE] =
- (_3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT);
-
- break;
-
- case GL_LINE_SMOOTH:
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
-
- i830->state.Ctx[I830_CTXREG_AA] &= ~AA_LINE_ENABLE;
- if (state)
- i830->state.Ctx[I830_CTXREG_AA] |= AA_LINE_ENABLE;
- else
- i830->state.Ctx[I830_CTXREG_AA] |= AA_LINE_DISABLE;
- break;
-
- case GL_FOG:
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
- i830->state.Ctx[I830_CTXREG_ENABLES_1] &= ~ENABLE_DIS_FOG_MASK;
- if (state)
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= ENABLE_FOG;
- else
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= DISABLE_FOG;
- break;
-
- case GL_CULL_FACE:
- i830CullFaceFrontFace(ctx, 0);
- break;
-
- case GL_TEXTURE_2D:
- 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) {
- I830_STATECHANGE(i830, I830_UPLOAD_CTX);
-
- if (state) {
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= ENABLE_STENCIL_TEST;
- i830->state.Ctx[I830_CTXREG_ENABLES_2] |= ENABLE_STENCIL_WRITE;
- }
- else {
- i830->state.Ctx[I830_CTXREG_ENABLES_1] &= ~ENABLE_STENCIL_TEST;
- i830->state.Ctx[I830_CTXREG_ENABLES_2] &=
- ~ENABLE_STENCIL_WRITE;
- i830->state.Ctx[I830_CTXREG_ENABLES_1] |= DISABLE_STENCIL_TEST;
- i830->state.Ctx[I830_CTXREG_ENABLES_2] |=
- DISABLE_STENCIL_WRITE;
- }
- }
- else {
- FALLBACK(&i830->intel, I830_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 (i830->intel.hw_stipple &&
- i830->intel.reduced_primitive == GL_TRIANGLES) {
- I830_STATECHANGE(i830, I830_UPLOAD_STIPPLE);
- i830->state.Stipple[I830_STPREG_ST1] &= ~ST1_ENABLE;
- if (state)
- i830->state.Stipple[I830_STPREG_ST1] |= ST1_ENABLE;
- }
- break;
-
- default:
- ;
- }
-}
-
-
-static void
-i830_init_packets(struct i830_context *i830)
-{
-
- /* Zero all state */
- memset(&i830->state, 0, sizeof(i830->state));
-
- /* Set default blend state */
- i830->state.TexBlend[0][0] = (_3DSTATE_MAP_BLEND_OP_CMD(0) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXOP_LAST_STAGE | TEXBLENDOP_ARG1);
- i830->state.TexBlend[0][1] = (_3DSTATE_MAP_BLEND_OP_CMD(0) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS | TEXBLENDOP_ARG1);
- i830->state.TexBlend[0][2] = (_3DSTATE_MAP_BLEND_ARG_CMD(0) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_DIFFUSE);
- i830->state.TexBlend[0][3] = (_3DSTATE_MAP_BLEND_ARG_CMD(0) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_DIFFUSE);
-
- i830->state.TexBlendWordsUsed[0] = 4;
-
-
- i830->state.Ctx[I830_CTXREG_VF] = 0;
- i830->state.Ctx[I830_CTXREG_VF2] = 0;
-
- i830->state.Ctx[I830_CTXREG_AA] = (_3DSTATE_AA_CMD |
- AA_LINE_ECAAR_WIDTH_ENABLE |
- AA_LINE_ECAAR_WIDTH_1_0 |
- AA_LINE_REGION_WIDTH_ENABLE |
- AA_LINE_REGION_WIDTH_1_0 |
- AA_LINE_DISABLE);
-
- i830->state.Ctx[I830_CTXREG_ENABLES_1] = (_3DSTATE_ENABLES_1_CMD |
- DISABLE_LOGIC_OP |
- DISABLE_STENCIL_TEST |
- DISABLE_DEPTH_BIAS |
- DISABLE_SPEC_ADD |
- DISABLE_FOG |
- DISABLE_ALPHA_TEST |
- DISABLE_COLOR_BLEND |
- DISABLE_DEPTH_TEST);
-
-#if 000 /* XXX all the stencil enable state is set in i830Enable(), right? */
- if (i830->intel.hw_stencil) {
- i830->state.Ctx[I830_CTXREG_ENABLES_2] = (_3DSTATE_ENABLES_2_CMD |
- ENABLE_STENCIL_WRITE |
- ENABLE_TEX_CACHE |
- ENABLE_DITHER |
- ENABLE_COLOR_MASK |
- /* set no color comps disabled */
- ENABLE_COLOR_WRITE |
- ENABLE_DEPTH_WRITE);
- }
- else
-#endif
- {
- i830->state.Ctx[I830_CTXREG_ENABLES_2] = (_3DSTATE_ENABLES_2_CMD |
- DISABLE_STENCIL_WRITE |
- ENABLE_TEX_CACHE |
- ENABLE_DITHER |
- ENABLE_COLOR_MASK |
- /* set no color comps disabled */
- ENABLE_COLOR_WRITE |
- ENABLE_DEPTH_WRITE);
- }
-
- i830->state.Ctx[I830_CTXREG_STATE1] = (_3DSTATE_MODES_1_CMD |
- ENABLE_COLR_BLND_FUNC |
- BLENDFUNC_ADD |
- ENABLE_SRC_BLND_FACTOR |
- SRC_BLND_FACT(BLENDFACT_ONE) |
- ENABLE_DST_BLND_FACTOR |
- DST_BLND_FACT(BLENDFACT_ZERO));
-
- i830->state.Ctx[I830_CTXREG_STATE2] = (_3DSTATE_MODES_2_CMD |
- ENABLE_GLOBAL_DEPTH_BIAS |
- GLOBAL_DEPTH_BIAS(0) |
- ENABLE_ALPHA_TEST_FUNC |
- ALPHA_TEST_FUNC(COMPAREFUNC_ALWAYS)
- | ALPHA_REF_VALUE(0));
-
- i830->state.Ctx[I830_CTXREG_STATE3] = (_3DSTATE_MODES_3_CMD |
- ENABLE_DEPTH_TEST_FUNC |
- DEPTH_TEST_FUNC(COMPAREFUNC_LESS) |
- ENABLE_ALPHA_SHADE_MODE |
- ALPHA_SHADE_MODE(SHADE_MODE_LINEAR)
- | ENABLE_FOG_SHADE_MODE |
- FOG_SHADE_MODE(SHADE_MODE_LINEAR) |
- ENABLE_SPEC_SHADE_MODE |
- SPEC_SHADE_MODE(SHADE_MODE_LINEAR) |
- ENABLE_COLOR_SHADE_MODE |
- COLOR_SHADE_MODE(SHADE_MODE_LINEAR)
- | ENABLE_CULL_MODE | CULLMODE_NONE);
-
- i830->state.Ctx[I830_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));
-
- i830->state.Ctx[I830_CTXREG_STENCILTST] = (_3DSTATE_STENCIL_TEST_CMD |
- ENABLE_STENCIL_PARMS |
- STENCIL_FAIL_OP(STENCILOP_KEEP)
- |
- STENCIL_PASS_DEPTH_FAIL_OP
- (STENCILOP_KEEP) |
- STENCIL_PASS_DEPTH_PASS_OP
- (STENCILOP_KEEP) |
- ENABLE_STENCIL_TEST_FUNC |
- STENCIL_TEST_FUNC
- (COMPAREFUNC_ALWAYS) |
- ENABLE_STENCIL_REF_VALUE |
- STENCIL_REF_VALUE(0));
-
- i830->state.Ctx[I830_CTXREG_STATE5] = (_3DSTATE_MODES_5_CMD | FLUSH_TEXTURE_CACHE | ENABLE_SPRITE_POINT_TEX | SPRITE_POINT_TEX_OFF | ENABLE_FIXED_LINE_WIDTH | FIXED_LINE_WIDTH(0x2) | /* 1.0 */
- ENABLE_FIXED_POINT_WIDTH |
- FIXED_POINT_WIDTH(1));
-
- i830->state.Ctx[I830_CTXREG_IALPHAB] = (_3DSTATE_INDPT_ALPHA_BLEND_CMD |
- DISABLE_INDPT_ALPHA_BLEND |
- ENABLE_ALPHA_BLENDFUNC |
- ABLENDFUNC_ADD);
-
- i830->state.Ctx[I830_CTXREG_FOGCOLOR] = (_3DSTATE_FOG_COLOR_CMD |
- FOG_COLOR_RED(0) |
- FOG_COLOR_GREEN(0) |
- FOG_COLOR_BLUE(0));
-
- i830->state.Ctx[I830_CTXREG_BLENDCOLOR0] = _3DSTATE_CONST_BLEND_COLOR_CMD;
- i830->state.Ctx[I830_CTXREG_BLENDCOLOR1] = 0;
-
- i830->state.Ctx[I830_CTXREG_MCSB0] = _3DSTATE_MAP_COORD_SETBIND_CMD;
- i830->state.Ctx[I830_CTXREG_MCSB1] = (TEXBIND_SET3(TEXCOORDSRC_VTXSET_3) |
- TEXBIND_SET2(TEXCOORDSRC_VTXSET_2) |
- TEXBIND_SET1(TEXCOORDSRC_VTXSET_1) |
- TEXBIND_SET0(TEXCOORDSRC_VTXSET_0));
-
-
- i830->state.Stipple[I830_STPREG_ST0] = _3DSTATE_STIPPLE;
-
- i830->state.Buffer[I830_DESTREG_DV0] = _3DSTATE_DST_BUF_VARS_CMD;
-
-#if 0
- switch (screen->fbFormat) {
- case DV_PF_565:
- i830->state.Buffer[I830_DESTREG_DV1] = (DSTORG_HORT_BIAS(0x8) | /* .5 */
- DSTORG_VERT_BIAS(0x8) | /* .5 */
- screen->fbFormat |
- DEPTH_IS_Z |
- DEPTH_FRMT_16_FIXED);
- break;
- case DV_PF_8888:
- i830->state.Buffer[I830_DESTREG_DV1] = (DSTORG_HORT_BIAS(0x8) | /* .5 */
- DSTORG_VERT_BIAS(0x8) | /* .5 */
- screen->fbFormat |
- DEPTH_IS_Z |
- DEPTH_FRMT_24_FIXED_8_OTHER);
- break;
- }
-#endif
- i830->state.Buffer[I830_DESTREG_SENABLE] = (_3DSTATE_SCISSOR_ENABLE_CMD |
- DISABLE_SCISSOR_RECT);
- i830->state.Buffer[I830_DESTREG_SR0] = _3DSTATE_SCISSOR_RECT_0_CMD;
- i830->state.Buffer[I830_DESTREG_SR1] = 0;
- i830->state.Buffer[I830_DESTREG_SR2] = 0;
-}
-
-
-void
-i830InitStateFuncs(struct dd_function_table *functions)
-{
- functions->AlphaFunc = i830AlphaFunc;
- functions->BlendColor = i830BlendColor;
- functions->BlendEquationSeparate = i830BlendEquationSeparate;
- functions->BlendFuncSeparate = i830BlendFuncSeparate;
- functions->ColorMask = i830ColorMask;
- functions->CullFace = i830CullFaceFrontFace;
- functions->DepthFunc = i830DepthFunc;
- functions->DepthMask = i830DepthMask;
- functions->Enable = i830Enable;
- functions->Fogfv = i830Fogfv;
- functions->FrontFace = i830CullFaceFrontFace;
- functions->LightModelfv = i830LightModelfv;
- functions->LineWidth = i830LineWidth;
- functions->LogicOpcode = i830LogicOp;
- functions->PointSize = i830PointSize;
- functions->PolygonStipple = i830PolygonStipple;
- functions->Scissor = i830Scissor;
- functions->ShadeModel = i830ShadeModel;
- functions->StencilFuncSeparate = i830StencilFuncSeparate;
- functions->StencilMaskSeparate = i830StencilMaskSeparate;
- functions->StencilOpSeparate = i830StencilOpSeparate;
-}
-
-void
-i830InitState(struct i830_context *i830)
-{
- GLcontext *ctx = &i830->intel.ctx;
-
- i830_init_packets(i830);
-
- _mesa_init_driver_state(ctx);
-
- memcpy(&i830->initial, &i830->state, sizeof(i830->state));
-
- i830->current = &i830->state;
- i830->state.emitted = 0;
- i830->state.active = (I830_UPLOAD_INVARIENT |
- I830_UPLOAD_TEXBLEND(0) |
- I830_UPLOAD_STIPPLE |
- I830_UPLOAD_CTX | I830_UPLOAD_BUFFERS);
-}