diff options
Diffstat (limited to 'src/mesa/drivers/dri/i915tex/i830_state.c')
| -rw-r--r-- | src/mesa/drivers/dri/i915tex/i830_state.c | 1106 |
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); -} |