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path: root/src/mesa/drivers/dri/i915/i915_state.c
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Diffstat (limited to 'src/mesa/drivers/dri/i915/i915_state.c')
-rw-r--r--src/mesa/drivers/dri/i915/i915_state.c970
1 files changed, 0 insertions, 970 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_state.c b/src/mesa/drivers/dri/i915/i915_state.c
deleted file mode 100644
index 1c4ec74755..0000000000
--- a/src/mesa/drivers/dri/i915/i915_state.c
+++ /dev/null
@@ -1,970 +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 "tnl/tnl.h"
-#include "tnl/t_context.h"
-
-#include "texmem.h"
-
-#include "drivers/common/driverfuncs.h"
-
-#include "intel_screen.h"
-#include "intel_batchbuffer.h"
-
-#include "i915_context.h"
-#include "i915_reg.h"
-
-
-
-static void
-i915StencilFuncSeparate(GLcontext *ctx, GLenum face, GLenum func, GLint ref,
- GLuint mask)
-{
- i915ContextPtr i915 = I915_CONTEXT(ctx);
- int test = intel_translate_compare_func( func );
-
- mask = mask & 0xff;
-
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "%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));
-}
-
-static void
-i915StencilMaskSeparate(GLcontext *ctx, GLenum face, GLuint mask)
-{
- i915ContextPtr i915 = I915_CONTEXT(ctx);
-
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "%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
-i915StencilOpSeparate(GLcontext *ctx, GLenum face, GLenum fail, GLenum zfail,
- GLenum zpass)
-{
- i915ContextPtr 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);
-
-
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "%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 void i915AlphaFunc(GLcontext *ctx, GLenum func, GLfloat ref)
-{
- i915ContextPtr 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));
-}
-
-/* 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)
-{
- i915ContextPtr 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 i915BlendColor(GLcontext *ctx, const GLfloat color[4])
-{
- i915ContextPtr i915 = I915_CONTEXT(ctx);
- GLubyte r, g, b, a;
-
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- UNCLAMPED_FLOAT_TO_UBYTE(r, color[RCOMP]);
- UNCLAMPED_FLOAT_TO_UBYTE(g, color[GCOMP]);
- UNCLAMPED_FLOAT_TO_UBYTE(b, color[BCOMP]);
- UNCLAMPED_FLOAT_TO_UBYTE(a, color[ACOMP]);
-
- I915_STATECHANGE(i915, I915_UPLOAD_CTX);
- i915->state.Ctx[I915_CTXREG_BLENDCOLOR1] = (a<<24) | (r<<16) | (g<<8) | b;
-}
-
-
-#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( GLcontext *ctx )
-{
- i915ContextPtr i915 = I915_CONTEXT(ctx);
- GLuint iab = (i915->state.Ctx[I915_CTXREG_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.BlendEquationRGB;
- GLuint eqA = ctx->Color.BlendEquationA;
- GLuint srcRGB = ctx->Color.BlendSrcRGB;
- GLuint dstRGB = ctx->Color.BlendDstRGB;
- GLuint srcA = ctx->Color.BlendSrcA;
- GLuint dstA = ctx->Color.BlendDstA;
-
- 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.Ctx[I915_CTXREG_IAB] ||
- lis6 != i915->state.Ctx[I915_CTXREG_LIS6]) {
- I915_STATECHANGE(i915, I915_UPLOAD_CTX);
- i915->state.Ctx[I915_CTXREG_IAB] = iab;
- i915->state.Ctx[I915_CTXREG_LIS6] = lis6;
- }
-
- /* This will catch a logicop blend equation */
- i915EvalLogicOpBlendState(ctx);
-}
-
-
-static void i915BlendFuncSeparate(GLcontext *ctx, GLenum srcRGB,
- GLenum dstRGB, GLenum srcA,
- GLenum dstA )
-{
- i915UpdateBlendState( ctx );
-}
-
-
-static void i915BlendEquationSeparate(GLcontext *ctx, GLenum eqRGB,
- GLenum eqA)
-{
- i915UpdateBlendState( ctx );
-}
-
-
-static void i915DepthFunc(GLcontext *ctx, GLenum func)
-{
- i915ContextPtr i915 = I915_CONTEXT(ctx);
- int test = intel_translate_compare_func( func );
-
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "%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 i915DepthMask(GLcontext *ctx, GLboolean flag)
-{
- i915ContextPtr i915 = I915_CONTEXT(ctx);
-
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "%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;
-}
-
-/* =============================================================
- * Polygon stipple
- *
- * The i915 supports a 4x4 stipple natively, GL wants 32x32.
- * Fortunately stipple is usually a repeating pattern.
- */
-static void i915PolygonStipple( GLcontext *ctx, const GLubyte *mask )
-{
- i915ContextPtr i915 = I915_CONTEXT(ctx);
- const GLubyte *m = mask;
- 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;
- }
-
- 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(GLcontext *ctx, GLint x, GLint y,
- GLsizei w, GLsizei h)
-{
- i915ContextPtr i915 = I915_CONTEXT(ctx);
- intelScreenPrivate *screen = i915->intel.intelScreen;
- int x1, y1, x2, y2;
-
- if (!i915->intel.driDrawable)
- return;
-
- x1 = x;
- y1 = i915->intel.driDrawable->h - (y + h);
- x2 = x + w - 1;
- y2 = y1 + h - 1;
-
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "[%s] x(%d) y(%d) w(%d) h(%d)\n", __FUNCTION__,
- x, y, w, h);
-
- if (x1 < 0) x1 = 0;
- if (y1 < 0) y1 = 0;
- if (x2 < 0) x2 = 0;
- if (y2 < 0) y2 = 0;
-
- if (x2 >= screen->width) x2 = screen->width-1;
- if (y2 >= screen->height) y2 = screen->height-1;
- if (x1 >= screen->width) x1 = screen->width-1;
- if (y1 >= screen->height) y1 = screen->height-1;
-
-
- 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(GLcontext *ctx, GLenum opcode)
-{
- i915ContextPtr i915 = I915_CONTEXT(ctx);
- int tmp = intel_translate_logic_op(opcode);
-
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "%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 i915CullFaceFrontFace(GLcontext *ctx, GLenum unused)
-{
- i915ContextPtr i915 = I915_CONTEXT(ctx);
- GLuint mode;
-
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- if (!ctx->Polygon.CullFlag) {
- mode = S4_CULLMODE_NONE;
- }
- else if (ctx->Polygon.CullFaceMode != GL_FRONT_AND_BACK) {
- mode = S4_CULLMODE_CW;
-
- 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;
- }
-
- I915_STATECHANGE(i915, I915_UPLOAD_CTX);
- i915->state.Ctx[I915_CTXREG_LIS4] &= ~S4_CULLMODE_MASK;
- i915->state.Ctx[I915_CTXREG_LIS4] |= mode;
-}
-
-static void i915LineWidth( GLcontext *ctx, GLfloat widthf )
-{
- i915ContextPtr i915 = I915_CONTEXT( ctx );
- int lis4 = i915->state.Ctx[I915_CTXREG_LIS4] & ~S4_LINE_WIDTH_MASK;
- int width;
-
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- width = (int)(widthf * 2);
- CLAMP_SELF(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(GLcontext *ctx, GLfloat size)
-{
- i915ContextPtr i915 = I915_CONTEXT(ctx);
- int lis4 = i915->state.Ctx[I915_CTXREG_LIS4] & ~S4_POINT_WIDTH_MASK;
- GLint point_size = (int)size;
-
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- CLAMP_SELF(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;
- }
-}
-
-
-/* =============================================================
- * Color masks
- */
-
-static void i915ColorMask(GLcontext *ctx,
- GLboolean r, GLboolean g,
- GLboolean b, GLboolean a)
-{
- i915ContextPtr i915 = I915_CONTEXT( ctx );
- GLuint tmp = i915->state.Ctx[I915_CTXREG_LIS5] & ~S5_WRITEDISABLE_MASK;
-
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "%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;
- }
-}
-
-static void update_specular( GLcontext *ctx )
-{
- /* A hack to trigger the rebuild of the fragment program.
- */
- INTEL_CONTEXT(ctx)->NewGLState |= _NEW_TEXTURE;
- I915_CONTEXT(ctx)->tex_program.translated = 0;
-}
-
-static void i915LightModelfv(GLcontext *ctx, GLenum pname,
- const GLfloat *param)
-{
- if (INTEL_DEBUG&DEBUG_DRI)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- if (pname == GL_LIGHT_MODEL_COLOR_CONTROL) {
- update_specular( ctx );
- }
-}
-
-static void i915ShadeModel(GLcontext *ctx, GLenum mode)
-{
- i915ContextPtr 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
- */
-void i915_update_fog( GLcontext *ctx )
-{
- i915ContextPtr i915 = I915_CONTEXT(ctx);
- GLenum mode;
- GLboolean enabled;
- GLboolean try_pixel_fog;
-
- if (ctx->FragmentProgram._Active) {
- /* Pull in static fog state from program */
-
- mode = ctx->FragmentProgram._Current->FogOption;
- enabled = (mode != GL_NONE);
- try_pixel_fog = 0;
- }
- else {
- enabled = ctx->Fog.Enabled;
- mode = ctx->Fog.Mode;
-#if 0
- /* XXX - DISABLED -- Need ortho fallback */
- try_pixel_fog = (ctx->Fog.FogCoordinateSource == GL_FRAGMENT_DEPTH_EXT
- &&ctx->Hint.Fog == GL_NICEST);
-#else
- try_pixel_fog = 0;
-#endif
- }
-
- if (!enabled) {
- i915->vertex_fog = I915_FOG_NONE;
- }
- else if (try_pixel_fog) {
- I915_STATECHANGE(i915, I915_UPLOAD_FOG);
- i915->state.Fog[I915_FOGREG_MODE1] &= ~FMC1_FOGFUNC_MASK;
- i915->vertex_fog = I915_FOG_PIXEL;
-
- switch (mode) {
- case GL_LINEAR:
- if (ctx->Fog.End <= ctx->Fog.Start) {
- /* XXX - this won't work with fragment programs. Need to
- * either fallback or append fog instructions to end of
- * program in the case of linear fog.
- */
- i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_VERTEX;
- i915->vertex_fog = I915_FOG_VERTEX;
- }
- else {
- GLfloat c2 = 1.0 / (ctx->Fog.End - ctx->Fog.Start);
- GLfloat c1 = ctx->Fog.End * c2;
-
- i915->state.Fog[I915_FOGREG_MODE1] &= ~FMC1_C1_MASK;
- i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_PIXEL_LINEAR;
- i915->state.Fog[I915_FOGREG_MODE1] |=
- ((GLuint)(c1 * FMC1_C1_ONE)) & FMC1_C1_MASK;
-
- if (i915->state.Fog[I915_FOGREG_MODE1] & FMC1_FOGINDEX_Z) {
- i915->state.Fog[I915_FOGREG_MODE2]
- = (GLuint)(c2 * FMC2_C2_ONE);
- }
- else {
- fi_type fi;
- fi.f = c2;
- i915->state.Fog[I915_FOGREG_MODE2] = fi.i;
- }
- }
- break;
- case GL_EXP:
- i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_PIXEL_EXP;
- break;
- case GL_EXP2:
- i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_PIXEL_EXP2;
- break;
- default:
- break;
- }
- }
- else /* if (i915->vertex_fog != I915_FOG_VERTEX) */ {
- I915_STATECHANGE(i915, I915_UPLOAD_FOG);
- i915->state.Fog[I915_FOGREG_MODE1] &= ~FMC1_FOGFUNC_MASK;
- i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_VERTEX;
- i915->vertex_fog = I915_FOG_VERTEX;
- }
-
- I915_STATECHANGE(i915, I915_UPLOAD_CTX);
- I915_ACTIVESTATE(i915, I915_UPLOAD_FOG, enabled);
- if (enabled)
- i915->state.Ctx[I915_CTXREG_LIS5] |= S5_FOG_ENABLE;
- else
- i915->state.Ctx[I915_CTXREG_LIS5] &= ~S5_FOG_ENABLE;
-
- /* Always enable pixel fog. Vertex fog using fog coord will conflict
- * with fog code appended onto fragment program.
- */
- _tnl_allow_vertex_fog( ctx, 0 );
- _tnl_allow_pixel_fog( ctx, 1 );
-}
-
-static void
-i915Fogfv(GLcontext *ctx, GLenum pname, const GLfloat *param)
-{
- i915ContextPtr 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 {
- union { float f; int i; } 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;
- }
-}
-
-static void i915Hint(GLcontext *ctx, GLenum target, GLenum state)
-{
- switch (target) {
- case GL_FOG_HINT:
- break;
- default:
- break;
- }
-}
-
-/* =============================================================
- */
-
-static void i915Enable(GLcontext *ctx, GLenum cap, GLboolean state)
-{
- i915ContextPtr 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)
- 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:
- if (i915->intel.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:
- FALLBACK( &i915->intel, I915_FALLBACK_POLYGON_SMOOTH, state );
- break;
-
- case GL_POINT_SMOOTH:
- FALLBACK( &i915->intel, I915_FALLBACK_POINT_SMOOTH, state );
- break;
-
- default:
- ;
- }
-}
-
-
-static void i915_init_packets( i915ContextPtr i915 )
-{
- intelScreenPrivate *screen = i915->intel.intelScreen;
-
- /* Zero all state */
- memset(&i915->state, 0, sizeof(i915->state));
-
-
- {
- I915_STATECHANGE(i915, I915_UPLOAD_CTX);
- /* 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 (screen->cpp == 2)
- 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.Ctx[I915_CTXREG_IAB] = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD |
- IAB_MODIFY_ENABLE |
- IAB_MODIFY_FUNC |
- IAB_MODIFY_SRC_FACTOR |
- IAB_MODIFY_DST_FACTOR);
-
- i915->state.Ctx[I915_CTXREG_BLENDCOLOR0] = _3DSTATE_CONST_BLEND_COLOR_CMD;
- i915->state.Ctx[I915_CTXREG_BLENDCOLOR1] = 0;
-
- }
-
- {
- I915_STATECHANGE(i915, I915_UPLOAD_STIPPLE);
- i915->state.Stipple[I915_STPREG_ST0] = _3DSTATE_STIPPLE;
- }
-
-
- {
- I915_STATECHANGE(i915, I915_UPLOAD_FOG);
- i915->state.Fog[I915_FOGREG_MODE0] = _3DSTATE_FOG_MODE_CMD;
- i915->state.Fog[I915_FOGREG_MODE1] = (FMC1_FOGFUNC_MODIFY_ENABLE |
- FMC1_FOGFUNC_VERTEX |
- FMC1_FOGINDEX_MODIFY_ENABLE |
- FMC1_FOGINDEX_W |
- FMC1_C1_C2_MODIFY_ENABLE |
- FMC1_DENSITY_MODIFY_ENABLE);
- i915->state.Fog[I915_FOGREG_COLOR] = _3DSTATE_FOG_COLOR_CMD;
- }
-
-
- {
- I915_STATECHANGE(i915, I915_UPLOAD_BUFFERS);
- /* color buffer offset/stride */
- i915->state.Buffer[I915_DESTREG_CBUFADDR0] = _3DSTATE_BUF_INFO_CMD;
- i915->state.Buffer[I915_DESTREG_CBUFADDR1] =
- (BUF_3D_ID_COLOR_BACK |
- BUF_3D_PITCH(screen->front.pitch) | /* pitch in bytes */
- BUF_3D_USE_FENCE);
- /*i915->state.Buffer[I915_DESTREG_CBUFADDR2] is the offset */
-
-
- /* depth/Z buffer offset/stride */
- i915->state.Buffer[I915_DESTREG_DBUFADDR0] = _3DSTATE_BUF_INFO_CMD;
- i915->state.Buffer[I915_DESTREG_DBUFADDR1] =
- (BUF_3D_ID_DEPTH |
- BUF_3D_PITCH(screen->depth.pitch) | /* pitch in bytes */
- BUF_3D_USE_FENCE);
- i915->state.Buffer[I915_DESTREG_DBUFADDR2] = screen->depth.offset;
-
-
- i915->state.Buffer[I915_DESTREG_DV0] = _3DSTATE_DST_BUF_VARS_CMD;
-
- /* color/depth pixel format */
- switch (screen->fbFormat) {
- case DV_PF_555:
- case DV_PF_565:
- i915->state.Buffer[I915_DESTREG_DV1] = (DSTORG_HORT_BIAS(0x8) | /* .5 */
- DSTORG_VERT_BIAS(0x8) | /* .5 */
- LOD_PRECLAMP_OGL |
- TEX_DEFAULT_COLOR_OGL |
- DITHER_FULL_ALWAYS |
- screen->fbFormat |
- DEPTH_FRMT_16_FIXED);
- break;
- case DV_PF_8888:
- i915->state.Buffer[I915_DESTREG_DV1] = (DSTORG_HORT_BIAS(0x8) | /* .5 */
- DSTORG_VERT_BIAS(0x8) | /* .5 */
- LOD_PRECLAMP_OGL |
- TEX_DEFAULT_COLOR_OGL |
- screen->fbFormat |
- DEPTH_FRMT_24_FIXED_8_OTHER);
- break;
- }
-
- /* scissor */
- i915->state.Buffer[I915_DESTREG_SENABLE] = (_3DSTATE_SCISSOR_ENABLE_CMD |
- DISABLE_SCISSOR_RECT);
- 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;
- }
-
-
- /* 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_BUFFERS |
- I915_UPLOAD_INVARIENT);
-}
-
-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->Hint = i915Hint;
- functions->LightModelfv = i915LightModelfv;
- functions->LineWidth = i915LineWidth;
- functions->LogicOpcode = i915LogicOp;
- functions->PointSize = i915PointSize;
- functions->PolygonStipple = i915PolygonStipple;
- functions->Scissor = i915Scissor;
- functions->ShadeModel = i915ShadeModel;
- functions->StencilFuncSeparate = i915StencilFuncSeparate;
- functions->StencilMaskSeparate = i915StencilMaskSeparate;
- functions->StencilOpSeparate = i915StencilOpSeparate;
-}
-
-
-void i915InitState( i915ContextPtr i915 )
-{
- GLcontext *ctx = &i915->intel.ctx;
-
- i915_init_packets( i915 );
-
- _mesa_init_driver_state(ctx);
-
- memcpy( &i915->initial, &i915->state, sizeof(i915->state) );
- i915->current = &i915->state;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 18:24:49 +0000