}
-GLuint i830SetBlend_GL1_2(i830ContextPtr i830, int blendUnit,
- GLenum envMode, GLenum format, GLuint texel_op,
- GLuint *state, const GLfloat *factor)
+/**
+ * Calculate the hardware instuctions to setup the current texture enviromnemt
+ * settings. Since \c gl_texture_unit::_CurrentCombine is used, both
+ * "classic" texture enviroments and GL_ARB_texture_env_combine type texture
+ * environments are treated identically.
+ *
+ * \todo
+ * This function should return \c GLboolean. When \c GL_FALSE is returned,
+ * it means that an environment is selected that the hardware cannot do. This
+ * is the way the Radeon and R200 drivers work.
+ *
+ * \todo
+ * Looking at i830_3d_regs.h, it seems the i830 can do part of
+ * GL_ATI_texture_env_combine3. It can handle using \c GL_ONE and
+ * \c GL_ZERO as combine inputs (which the code already supports). It can
+ * also handle the \c GL_MODULATE_ADD_ATI mode. Is it worth investigating
+ * partial support for the extension?
+ */
+GLuint
+i830SetTexEnvCombine(i830ContextPtr i830,
+ const struct gl_tex_env_combine_state * combine,
+ GLint blendUnit,
+ GLuint texel_op,
+ GLuint *state,
+ const GLfloat *factor )
{
- if(INTEL_DEBUG&DEBUG_TEXTURE)
- fprintf(stderr, "%s %s %s texel_op(0x%x)\n",
- __FUNCTION__,
- _mesa_lookup_enum_by_nr(format),
- _mesa_lookup_enum_by_nr(envMode),
- texel_op);
-
- switch(envMode) {
- case GL_REPLACE:
- switch(format) {
- case GL_ALPHA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- return 4;
-
- case GL_LUMINANCE:
- case GL_RGB:
- case GL_YCBCR_MESA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return 4;
-
- case GL_INTENSITY:
- case GL_LUMINANCE_ALPHA:
- case GL_RGBA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- return 4;
-
- default:
- /* Always set to passthru if something is funny */
- return pass_through( state, blendUnit );
- }
-
- case GL_MODULATE:
- switch(format) {
- case GL_ALPHA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_MODULATE);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[4] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return 5;
-
- case GL_LUMINANCE:
- case GL_RGB:
- case GL_YCBCR_MESA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_MODULATE);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[4] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return 5;
-
- case GL_INTENSITY:
- case GL_LUMINANCE_ALPHA:
- case GL_RGBA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_MODULATE);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_MODULATE);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[4] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[5] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return 6;
-
- default:
- /* Always set to passthru if something is funny */
- return pass_through( state, blendUnit );
- }
-
- case GL_DECAL:
- switch(format) {
- case GL_RGB:
- case GL_YCBCR_MESA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return 4;
-
- case GL_RGBA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_BLEND);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG0 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_REPLICATE_ALPHA |
- texel_op);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[4] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[5] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return 6;
- default:
- /* Always set to passthru if something is funny */
- return pass_through( state, blendUnit );
- }
-
- case GL_BLEND:
- switch(format) {
- case GL_ALPHA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_MODULATE);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[4] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return 5;
-
- case GL_LUMINANCE:
- case GL_RGB:
- case GL_YCBCR_MESA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_BLEND);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG0 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_FACTOR_N);
- state[4] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[5] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return emit_factor( blendUnit, state, 6, factor );
-
- case GL_INTENSITY:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_BLEND);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_BLEND);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG0 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_FACTOR_N);
- state[4] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[5] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG0 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[6] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_FACTOR_N);
- state[7] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return emit_factor( blendUnit, state, 8, factor );
-
-
- case GL_LUMINANCE_ALPHA:
- case GL_RGBA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_BLEND);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_MODULATE);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG0 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_FACTOR_N);
- state[4] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[5] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[6] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return emit_factor( blendUnit, state, 7, factor );
-
- default:
- /* Always set to passthru if something is funny */
- return pass_through( state, blendUnit );
- }
-
- case GL_ADD:
- switch(format) {
- case GL_ALPHA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_MODULATE);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[4] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return 5;
-
- case GL_LUMINANCE:
- case GL_RGB:
- case GL_YCBCR_MESA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ADD);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ARG1);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[4] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return 5;
-
- case GL_INTENSITY:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ADD);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ADD);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[4] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[5] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return 6;
-
- case GL_LUMINANCE_ALPHA:
- case GL_RGBA:
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_ADD);
- state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_SCALE_1X |
- TEXOP_MODIFY_PARMS |
- TEXBLENDOP_MODULATE);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- state[4] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- texel_op);
- state[5] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- TEXBLENDARG_CURRENT);
- return 6;
-
- default:
- /* Always set to passthru if something is funny */
- return pass_through( state, blendUnit );
- }
+ const GLuint numColorArgs = combine->_NumArgsRGB;
+ const GLuint numAlphaArgs = combine->_NumArgsA;
- default:
- /* Always set to passthru if something is funny */
- return pass_through( state, blendUnit );
- }
-}
-
-static GLuint i830SetTexEnvCombine(i830ContextPtr i830,
- const struct gl_texture_unit *texUnit,
- GLint blendUnit,
- GLuint texel_op,
- GLuint *state,
- const GLfloat *factor )
-{
GLuint blendop;
GLuint ablendop;
GLuint args_RGB[3];
GLuint alpha_shift;
GLboolean need_factor = 0;
int i;
+ unsigned used;
+ static const GLuint tex_blend_rgb[3] = {
+ TEXPIPE_COLOR | TEXBLEND_ARG1 | TEXBLENDARG_MODIFY_PARMS,
+ TEXPIPE_COLOR | TEXBLEND_ARG2 | TEXBLENDARG_MODIFY_PARMS,
+ TEXPIPE_COLOR | TEXBLEND_ARG0 | TEXBLENDARG_MODIFY_PARMS,
+ };
+ static const GLuint tex_blend_a[3] = {
+ TEXPIPE_ALPHA | TEXBLEND_ARG1 | TEXBLENDARG_MODIFY_PARMS,
+ TEXPIPE_ALPHA | TEXBLEND_ARG2 | TEXBLENDARG_MODIFY_PARMS,
+ TEXPIPE_ALPHA | TEXBLEND_ARG0 | TEXBLENDARG_MODIFY_PARMS,
+ };
if(INTEL_DEBUG&DEBUG_TEXTURE)
fprintf(stderr, "%s\n", __FUNCTION__);
* scale factor, but the ARB version (and the version in OpenGL
* 1.3) does.
*/
- switch (texUnit->Combine.ModeRGB) {
+ switch (combine->ModeRGB) {
case GL_DOT3_RGB_EXT:
- alpha_shift = texUnit->Combine.ScaleShiftA;
+ alpha_shift = combine->ScaleShiftA;
rgb_shift = 0;
break;
break;
default:
- rgb_shift = texUnit->Combine.ScaleShiftRGB;
- alpha_shift = texUnit->Combine.ScaleShiftA;
+ rgb_shift = combine->ScaleShiftRGB;
+ alpha_shift = combine->ScaleShiftA;
break;
}
- switch(texUnit->Combine.ModeRGB) {
+ switch(combine->ModeRGB) {
case GL_REPLACE:
blendop = TEXBLENDOP_ARG1;
break;
/* Handle RGB args */
for(i = 0; i < 3; i++) {
- switch(texUnit->Combine.SourceRGB[i]) {
+ switch(combine->SourceRGB[i]) {
case GL_TEXTURE:
args_RGB[i] = texel_op;
break;
+ case GL_TEXTURE0:
+ case GL_TEXTURE1:
+ case GL_TEXTURE2:
+ case GL_TEXTURE3:
+ args_RGB[i] = GetTexelOp( combine->SourceRGB[i] - GL_TEXTURE0 );
+ break;
case GL_CONSTANT:
args_RGB[i] = TEXBLENDARG_FACTOR_N;
need_factor = 1;
return pass_through( state, blendUnit );
}
- switch(texUnit->Combine.OperandRGB[i]) {
+ switch(combine->OperandRGB[i]) {
case GL_SRC_COLOR:
args_RGB[i] |= 0;
break;
* Note - the global factor is set up with alpha == .5, so
* the alpha part of the DOT4 calculation should be zero.
*/
- if ( texUnit->Combine.ModeRGB == GL_DOT3_RGBA_EXT ||
- texUnit->Combine.ModeRGB == GL_DOT3_RGBA ) {
+ if ( combine->ModeRGB == GL_DOT3_RGBA_EXT ||
+ combine->ModeRGB == GL_DOT3_RGBA ) {
ablendop = TEXBLENDOP_DOT4;
args_A[0] = TEXBLENDARG_FACTOR; /* the global factor */
args_A[1] = TEXBLENDARG_FACTOR;
args_A[2] = TEXBLENDARG_FACTOR;
}
else {
- switch(texUnit->Combine.ModeA) {
+ switch(combine->ModeA) {
case GL_REPLACE:
ablendop = TEXBLENDOP_ARG1;
break;
/* Handle A args */
for(i = 0; i < 3; i++) {
- switch(texUnit->Combine.SourceA[i]) {
+ switch(combine->SourceA[i]) {
case GL_TEXTURE:
args_A[i] = texel_op;
break;
+ case GL_TEXTURE0:
+ case GL_TEXTURE1:
+ case GL_TEXTURE2:
+ case GL_TEXTURE3:
+ args_A[i] = GetTexelOp( combine->SourceA[i] - GL_TEXTURE0 );
+ break;
case GL_CONSTANT:
args_A[i] = TEXBLENDARG_FACTOR_N;
need_factor = 1;
return pass_through( state, blendUnit );
}
- switch(texUnit->Combine.OperandA[i]) {
+ switch(combine->OperandA[i]) {
case GL_SRC_ALPHA:
args_A[i] |= 0;
break;
*/
- /* Build color pipeline */
-
- state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_COLOR |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- DISABLE_TEX_CNTRL_STAGE |
- TEXOP_MODIFY_PARMS |
- blendop);
- state[1] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- args_RGB[0]);
- state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- args_RGB[1]);
- state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_COLOR |
- TEXBLEND_ARG0 |
- TEXBLENDARG_MODIFY_PARMS |
- args_RGB[2]);
+ /* Build color & alpha pipelines */
+
+ used = 0;
+ state[used++] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
+ TEXPIPE_COLOR |
+ ENABLE_TEXOUTPUT_WRT_SEL |
+ TEXOP_OUTPUT_CURRENT |
+ DISABLE_TEX_CNTRL_STAGE |
+ TEXOP_MODIFY_PARMS |
+ blendop);
+ state[used++] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
+ TEXPIPE_ALPHA |
+ ENABLE_TEXOUTPUT_WRT_SEL |
+ TEXOP_OUTPUT_CURRENT |
+ TEXOP_MODIFY_PARMS |
+ ablendop);
+
+ for ( i = 0 ; i < numColorArgs ; i++ ) {
+ state[used++] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
+ tex_blend_rgb[i] | args_RGB[i]);
+ }
- /* Build Alpha pipeline */
- state[4] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- ENABLE_TEXOUTPUT_WRT_SEL |
- TEXOP_OUTPUT_CURRENT |
- TEXOP_MODIFY_PARMS |
- ablendop);
- state[5] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG1 |
- TEXBLENDARG_MODIFY_PARMS |
- args_A[0]);
- state[6] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG2 |
- TEXBLENDARG_MODIFY_PARMS |
- args_A[1]);
- state[7] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
- TEXPIPE_ALPHA |
- TEXBLEND_ARG0 |
- TEXBLENDARG_MODIFY_PARMS |
- args_A[2]);
+ for ( i = 0 ; i < numAlphaArgs ; i++ ) {
+ state[used++] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
+ tex_blend_a[i] | args_A[i]);
+ }
if (need_factor)
- return emit_factor( blendUnit, state, 8, factor );
+ return emit_factor( blendUnit, state, used, factor );
else
- return 8;
+ return used;
}
GLboolean last_stage )
{
struct gl_texture_unit *texUnit = &i830->intel.ctx.Texture.Unit[unit];
- struct gl_texture_object *tObj = texUnit->_Current;
- i830TextureObjectPtr t = (i830TextureObjectPtr)tObj->DriverData;
GLuint tmp[I830_TEXBLEND_SIZE], tmp_sz;
/* Update i830->state.TexBlend
*/
- if (texUnit->EnvMode == GL_COMBINE) {
- tmp_sz = i830SetTexEnvCombine(i830, texUnit, blendUnit,
- GetTexelOp(unit), tmp,
- texUnit->EnvColor );
- }
- else {
- tmp_sz = i830SetBlend_GL1_2(i830, blendUnit, texUnit->EnvMode,
- t->intel.image[0][0].internalFormat,
- GetTexelOp(unit), tmp,
- texUnit->EnvColor );
- }
+ tmp_sz = i830SetTexEnvCombine(i830, texUnit->_CurrentCombine, blendUnit,
+ GetTexelOp(unit), tmp,
+ texUnit->EnvColor );
if (last_stage)
tmp[0] |= TEXOP_LAST_STAGE;
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