/************************************************************************** * * 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 "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 "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 = ctx->Stencil.Ref[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 = ctx->Stencil.Ref[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 = ctx->Stencil.Ref[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 = ctx->Stencil.Ref[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, 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(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", __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]); 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)<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", __FUNCTION__); 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", __FUNCTION__, 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); if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) { _math_matrix_viewport(&intel->ViewportMatrix, ctx->Viewport.X, ctx->DrawBuffer->Height - ctx->Viewport.Y, ctx->Viewport.Width, -ctx->Viewport.Height, ctx->Viewport.Near, ctx->Viewport.Far, 1.0); } else { _math_matrix_viewport(&intel->ViewportMatrix, ctx->Viewport.X, ctx->Viewport.Y, ctx->Viewport.Width, ctx->Viewport.Height, ctx->Viewport.Near, ctx->Viewport.Far, 1.0); } } /** Called from ctx->Driver.Viewport() */ static void i915Viewport(struct gl_context * ctx, GLint x, GLint y, GLsizei width, GLsizei height) { intelCalcViewport(ctx); } /** Called from ctx->Driver.DepthRange() */ static void i915DepthRange(struct gl_context * ctx, GLclampd nearval, GLclampd farval) { 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, GLint x, GLint y, GLsizei w, GLsizei h) { struct i915_context *i915 = I915_CONTEXT(ctx); int x1, y1, x2, y2; if (!ctx->DrawBuffer) return; DBG("%s %d,%d %dx%d\n", __FUNCTION__, x, y, w, h); if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) { 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); 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", __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(struct gl_context * ctx, GLenum unused) { struct i915_context *i915 = I915_CONTEXT(ctx); GLuint mode, dw; DBG("%s %d\n", __FUNCTION__, 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", __FUNCTION__); 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", __FUNCTION__); 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", __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(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", __FUNCTION__); 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_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; } 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; functions->Viewport = i915Viewport; } void i915InitState(struct i915_context *i915) { struct gl_context *ctx = &i915->intel.ctx; i915_init_packets(i915); _mesa_init_driver_state(ctx); }