diff options
Diffstat (limited to 'src/mesa/drivers/dri/i915/i915_state.c')
| -rw-r--r-- | src/mesa/drivers/dri/i915/i915_state.c | 171 |
1 files changed, 7 insertions, 164 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_state.c b/src/mesa/drivers/dri/i915/i915_state.c index 3b1af4c..99212ad 100644 --- a/src/mesa/drivers/dri/i915/i915_state.c +++ b/src/mesa/drivers/dri/i915/i915_state.c @@ -724,157 +724,17 @@ i915ShadeModel(struct gl_context * ctx, GLenum mode) /* ============================================================= * 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. */ -void -i915_update_fog(struct gl_context * ctx) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - GLenum mode; - GLboolean enabled; - GLboolean try_pixel_fog; - GLuint dw; - - if (ctx->FragmentProgram._Current) { - /* 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. - */ - printf("vertex fog!\n"); - 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_ACTIVESTATE(i915, I915_UPLOAD_FOG, enabled); - dw = i915->state.Ctx[I915_CTXREG_LIS5]; - if (enabled) - dw |= S5_FOG_ENABLE; - else - dw &= ~S5_FOG_ENABLE; - if (dw != i915->state.Ctx[I915_CTXREG_LIS5]) { - i915->state.Ctx[I915_CTXREG_LIS5] = dw; - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - } - - /* 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(struct gl_context * ctx, GLenum pname, const GLfloat * param) { - struct i915_context *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 { - fi_type 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(struct gl_context * ctx, GLenum target, GLenum state) -{ - switch (target) { - case GL_FOG_HINT: - break; - default: - break; - } + (void) ctx; + (void) pname; + (void) param; } /* ============================================================= @@ -971,9 +831,6 @@ i915Enable(struct gl_context * ctx, GLenum cap, GLboolean state) } break; - case GL_FOG: - break; - case GL_CULL_FACE: i915CullFaceFrontFace(ctx, 0); break; @@ -1107,19 +964,6 @@ i915_init_packets(struct i915_context *i915) 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->state.Buffer[I915_DESTREG_DV0] = _3DSTATE_DST_BUF_VARS_CMD; @@ -1202,7 +1046,6 @@ i915InitStateFunctions(struct dd_function_table *functions) functions->Enable = i915Enable; functions->Fogfv = i915Fogfv; functions->FrontFace = i915CullFaceFrontFace; - functions->Hint = i915Hint; functions->LightModelfv = i915LightModelfv; functions->LineWidth = i915LineWidth; functions->LogicOpcode = i915LogicOp; |