Example #1
0
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
i915Enable(GLcontext * ctx, GLenum cap, GLboolean state)
{
   struct i915_context *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)    /* XXX FBO fix */
         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:
      {
         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) {
            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:
      break;

   case GL_POINT_SMOOTH:
      break;

   default:
      ;
   }
}