diff options
| -rw-r--r-- | src/mesa/drivers/dri/i830/i830_context.c | 18 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i830/i830_texstate.c | 1125 |
2 files changed, 148 insertions, 995 deletions
diff --git a/src/mesa/drivers/dri/i830/i830_context.c b/src/mesa/drivers/dri/i830/i830_context.c index 7f306f2110..97a9f793fc 100644 --- a/src/mesa/drivers/dri/i830/i830_context.c +++ b/src/mesa/drivers/dri/i830/i830_context.c @@ -26,14 +26,15 @@ * **************************************************************************/ /* $XFree86: xc/lib/GL/mesa/src/drv/i830/i830_context.c,v 1.9 2003/02/06 04:18:00 dawes Exp $ */ -/* - * Authors: - * Jeff Hartmann <jhartmann@2d3d.com> - * Graeme Fisher <graeme@2d3d.co.za> - * Abraham vd Merwe <abraham@2d3d.co.za> +/** + * \file i830_context.c + * + * Heavily Based on I810 driver written by Keith Whitwell. * - * Heavily Based on I810 driver written by: - * Keith Whitwell <keith@tungstengraphics.com> + * \author Jeff Hartmann <jhartmann@2d3d.com> + * \author Graeme Fisher <graeme@2d3d.co.za> + * \author Abraham vd Merwe <abraham@2d3d.co.za> + * \author Keith Whitwell <keith@tungstengraphics.com> */ #include "glheader.h" @@ -71,7 +72,7 @@ int I830_DEBUG = (0); * Mesa's Driver Functions ***************************************/ -#define DRIVER_DATE "20021115" +#define DRIVER_DATE "20040506" const char __driConfigOptions[] = { 0 }; @@ -146,6 +147,7 @@ static const char * const card_extensions[] = "GL_ARB_texture_compression", "GL_ARB_texture_env_add", "GL_ARB_texture_env_combine", + "GL_ARB_texture_env_crossbar", "GL_ARB_texture_env_dot3", "GL_ARB_texture_mirrored_repeat", "GL_EXT_blend_color", diff --git a/src/mesa/drivers/dri/i830/i830_texstate.c b/src/mesa/drivers/dri/i830/i830_texstate.c index 321670a360..e3d6819d88 100644 --- a/src/mesa/drivers/dri/i830/i830_texstate.c +++ b/src/mesa/drivers/dri/i830/i830_texstate.c @@ -27,12 +27,13 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. /* $XFree86: xc/lib/GL/mesa/src/drv/i830/i830_texstate.c,v 1.3 2002/12/10 01:26:53 dawes Exp $ */ -/* - * Author: - * Jeff Hartmann <jhartmann@2d3d.com> +/** + * \file i830_texstate.c + * + * Heavily based on the I810 driver, which was written by Keith Whitwell. * - * Heavily based on the I810 driver, which was written by: - * Keith Whitwell <keithw@tungstengraphics.com> + * \author Jeff Hartmann <jhartmann@2d3d.com> + * \author Keith Whitwell <keithw@tungstengraphics.com> */ #include "glheader.h" @@ -177,857 +178,70 @@ static void i830SetTexImages( i830ContextPtr imesa, /* ================================================================ * Texture combine functions */ -static __inline__ GLuint GetTexelOp(GLint unit) -{ - switch(unit) { - case 0: return TEXBLENDARG_TEXEL0; - case 1: return TEXBLENDARG_TEXEL1; - case 2: return TEXBLENDARG_TEXEL2; - case 3: return TEXBLENDARG_TEXEL3; - default: return TEXBLENDARG_TEXEL0; - } -} - -static void i830SetBlend_GL1_2(i830ContextPtr imesa, int curTex, - GLenum envMode, GLenum format) -{ - GLuint texel_op = GetTexelOp(curTex); - - if(I830_DEBUG&DEBUG_TEXTURE) - fprintf(stderr, "%s %s %s unit (%d) texel_op(0x%x)\n", - __FUNCTION__, - _mesa_lookup_enum_by_nr(format), - _mesa_lookup_enum_by_nr(envMode), - curTex, - texel_op); - - switch(envMode) { - case GL_REPLACE: - switch(format) { - case GL_ALPHA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 4; - break; - case GL_LUMINANCE: - case GL_RGB: - case GL_YCBCR_MESA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 4; - break; - - case GL_INTENSITY: - case GL_LUMINANCE_ALPHA: - case GL_RGBA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 4; - break; - default: - /* Always set to passthru if something is funny */ - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 4; - break; - } - break; - - case GL_MODULATE: - switch(format) { - case GL_ALPHA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_MODULATE); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][4] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 5; - break; - - case GL_LUMINANCE: - case GL_RGB: - case GL_YCBCR_MESA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_MODULATE); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][4] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 5; - break; - - case GL_INTENSITY: - case GL_LUMINANCE_ALPHA: - case GL_RGBA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_MODULATE); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_MODULATE); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][4] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][5] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 6; - break; - default: - /* Always set to passthru if something is funny */ - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 4; - break; - } - break; - - case GL_DECAL: - switch(format) { - case GL_RGB: - case GL_YCBCR_MESA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 4; - break; - - case GL_RGBA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_BLEND); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG0 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_REPLICATE_ALPHA | - texel_op); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][4] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][5] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 6; - break; - default: - /* Always set to passthru if something is funny */ - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 4; - break; - } - break; - - case GL_BLEND: - switch(format) { - case GL_ALPHA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_MODULATE); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][4] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 5; - break; - - case GL_LUMINANCE: - case GL_RGB: - case GL_YCBCR_MESA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_BLEND); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG0 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_FACTOR_N); - imesa->TexBlend[curTex][4] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][5] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 6; - break; - case GL_INTENSITY: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_BLEND); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_BLEND); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG0 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_FACTOR_N); - imesa->TexBlend[curTex][4] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][5] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG0 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][6] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_FACTOR_N); - imesa->TexBlend[curTex][7] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 8; - break; - case GL_LUMINANCE_ALPHA: - case GL_RGBA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_BLEND); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_MODULATE); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG0 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_FACTOR_N); - imesa->TexBlend[curTex][4] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][5] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][6] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 7; - break; - default: - /* Always set to passthru if something is funny */ - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 4; - break; - } - break; - - case GL_ADD: - switch(format) { - case GL_ALPHA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_MODULATE); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][4] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 5; - break; - case GL_LUMINANCE: - case GL_RGB: - case GL_YCBCR_MESA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ADD); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][4] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 5; - break; - - case GL_INTENSITY: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ADD); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ADD); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][4] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][5] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 6; - break; - - case GL_LUMINANCE_ALPHA: - case GL_RGBA: - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ADD); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_MODULATE); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][4] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - texel_op); - imesa->TexBlend[curTex][5] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 6; - break; - default: - /* Always set to passthru if something is funny */ - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 4; - break; - } - break; - default: - /* Always set to passthru if something is funny */ - imesa->TexBlend[curTex][0] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][1] = (STATE3D_MAP_BLEND_OP_CMD(curTex) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); - imesa->TexBlend[curTex][2] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlend[curTex][3] = (STATE3D_MAP_BLEND_ARG_CMD(curTex) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); - imesa->TexBlendColorPipeNum[curTex] = 0; - imesa->TexBlendWordsUsed[curTex] = 4; - break; - } - - if (I830_DEBUG&DEBUG_TEXTURE) - fprintf(stderr, "%s\n", __FUNCTION__); -} +/** + * 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? + */ -static void i830SetTexEnvCombine(i830ContextPtr imesa, - const struct gl_texture_unit *texUnit, - GLint unit) +static void i830UpdateTexEnv( GLcontext *ctx, GLuint unit ) { + i830ContextPtr imesa = I830_CONTEXT(ctx); + const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; + const GLuint numColorArgs = texUnit->_CurrentCombine->_NumArgsRGB; + const GLuint numAlphaArgs = texUnit->_CurrentCombine->_NumArgsA; + + GLboolean need_constant_color = GL_FALSE; GLuint blendop; GLuint ablendop; GLuint args_RGB[3]; GLuint args_A[3]; - GLuint texel_op = GetTexelOp(unit); GLuint rgb_shift = texUnit->Combine.ScaleShiftRGB; GLuint alpha_shift = texUnit->Combine.ScaleShiftA; 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, + }; + static const GLuint op_rgb[4] = { + 0, + TEXBLENDARG_INV_ARG, + TEXBLENDARG_REPLICATE_ALPHA, + TEXBLENDARG_REPLICATE_ALPHA | TEXBLENDARG_INV_ARG, + }; + + + + imesa->TexBlendWordsUsed[unit] = 0; if(I830_DEBUG&DEBUG_TEXTURE) - fprintf(stderr, "%s\n", __FUNCTION__); + fprintf(stderr, "[%s:%u] env. mode = %s\n", __FUNCTION__, __LINE__, + _mesa_lookup_enum_by_nr(texUnit->EnvMode)); - switch(texUnit->Combine.ModeRGB) { + + switch(texUnit->_CurrentCombine->ModeRGB) { case GL_REPLACE: blendop = TEXBLENDOP_ARG1; break; @@ -1066,7 +280,7 @@ static void i830SetTexEnvCombine(i830ContextPtr imesa, blendop |= (rgb_shift << TEXOP_SCALE_SHIFT); - switch(texUnit->Combine.ModeA) { + switch(texUnit->_CurrentCombine->ModeA) { case GL_REPLACE: ablendop = TEXBLENDOP_ARG1; break; @@ -1089,21 +303,32 @@ static void i830SetTexEnvCombine(i830ContextPtr imesa, return; } - if ( (texUnit->Combine.ModeRGB == GL_DOT3_RGBA_EXT) - || (texUnit->Combine.ModeRGB == GL_DOT3_RGBA) ) { + if ( (texUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA_EXT) + || (texUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA) ) { ablendop = TEXBLENDOP_DOT3; } ablendop |= (alpha_shift << TEXOP_SCALE_SHIFT); /* Handle RGB args */ - for(i = 0; i < 3; i++) { - switch(texUnit->Combine.SourceRGB[i]) { + for( i = 0 ; i < numColorArgs ; i++ ) { + const int op = texUnit->_CurrentCombine->OperandRGB[i] - GL_SRC_COLOR; + + assert( (op >= 0) && (op <= 3) ); + switch(texUnit->_CurrentCombine->SourceRGB[i]) { case GL_TEXTURE: - args_RGB[i] = texel_op; + args_RGB[i] = TEXBLENDARG_TEXEL0 + unit; + break; + case GL_TEXTURE0: + case GL_TEXTURE1: + case GL_TEXTURE2: + case GL_TEXTURE3: + args_RGB[i] = TEXBLENDARG_TEXEL0 + + (texUnit->_CurrentCombine->SourceRGB[i] & 0x03); break; case GL_CONSTANT: args_RGB[i] = TEXBLENDARG_FACTOR_N; + need_constant_color = GL_TRUE; break; case GL_PRIMARY_COLOR: args_RGB[i] = TEXBLENDARG_DIFFUSE; @@ -1111,38 +336,41 @@ static void i830SetTexEnvCombine(i830ContextPtr imesa, case GL_PREVIOUS: args_RGB[i] = TEXBLENDARG_CURRENT; break; - default: - return; - - } - - switch(texUnit->Combine.OperandRGB[i]) { - case GL_SRC_COLOR: - args_RGB[i] |= 0; + case GL_ONE: + args_RGB[i] = TEXBLENDARG_ONE; break; - case GL_ONE_MINUS_SRC_COLOR: - args_RGB[i] |= TEXBLENDARG_INV_ARG; - break; - case GL_SRC_ALPHA: - args_RGB[i] |= TEXBLENDARG_REPLICATE_ALPHA; - break; - case GL_ONE_MINUS_SRC_ALPHA: - args_RGB[i] |= (TEXBLENDARG_REPLICATE_ALPHA | - TEXBLENDARG_INV_ARG); + case GL_ZERO: + args_RGB[i] = TEXBLENDARG_ONE | TEXBLENDARG_INV_ARG; break; default: return; } + + /* Xor is used so that GL_ONE_MINUS_SRC_COLOR with GL_ZERO + * works correctly. + */ + args_RGB[i] ^= op_rgb[op]; } /* Handle A args */ - for(i = 0; i < 3; i++) { - switch(texUnit->Combine.SourceA[i]) { + for( i = 0 ; i < numAlphaArgs ; i++ ) { + const int op = texUnit->_CurrentCombine->OperandA[i] - GL_SRC_ALPHA; + + assert( (op >= 0) && (op <= 1) ); + switch(texUnit->_CurrentCombine->SourceA[i]) { case GL_TEXTURE: - args_A[i] = texel_op; + args_A[i] = TEXBLENDARG_TEXEL0 + unit; + break; + case GL_TEXTURE0: + case GL_TEXTURE1: + case GL_TEXTURE2: + case GL_TEXTURE3: + args_A[i] = TEXBLENDARG_TEXEL0 + + (texUnit->_CurrentCombine->SourceA[i] & 0x03); break; case GL_CONSTANT: args_A[i] = TEXBLENDARG_FACTOR_N; + need_constant_color = GL_TRUE; break; case GL_PRIMARY_COLOR: args_A[i] = TEXBLENDARG_DIFFUSE; @@ -1150,21 +378,21 @@ static void i830SetTexEnvCombine(i830ContextPtr imesa, case GL_PREVIOUS: args_A[i] = TEXBLENDARG_CURRENT; break; - default: - return; - - } - - switch(texUnit->Combine.OperandA[i]) { - case GL_SRC_ALPHA: - args_A[i] |= 0; + case GL_ONE: + args_A[i] = TEXBLENDARG_ONE; break; - case GL_ONE_MINUS_SRC_ALPHA: - args_A[i] |= TEXBLENDARG_INV_ARG; + case GL_ZERO: + args_A[i] = TEXBLENDARG_ONE | TEXBLENDARG_INV_ARG; break; default: return; } + + /* We cheat. :) The register values for this are the same as for + * RGB. Xor is used so that GL_ONE_MINUS_SRC_ALPHA with GL_ZERO + * works correctly. + */ + args_A[i] ^= op_rgb[op]; } /* Native Arg1 == Arg0 in GL_EXT_texture_env_combine spec */ @@ -1179,123 +407,49 @@ static void i830SetTexEnvCombine(i830ContextPtr imesa, /* Build color pipeline */ - imesa->TexBlend[unit][0] = (STATE3D_MAP_BLEND_OP_CMD(unit) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_MODIFY_PARMS | - blendop); - imesa->TexBlend[unit][1] = (STATE3D_MAP_BLEND_ARG_CMD(unit) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - args_RGB[0]); - imesa->TexBlend[unit][2] = (STATE3D_MAP_BLEND_ARG_CMD(unit) | - TEXPIPE_COLOR | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - args_RGB[1]); - imesa->TexBlend[unit][3] = (STATE3D_MAP_BLEND_ARG_CMD(unit) | - TEXPIPE_COLOR | - TEXBLEND_ARG0 | - TEXBLENDARG_MODIFY_PARMS | - args_RGB[2]); + used = 0; + imesa->TexBlend[unit][used++] = (STATE3D_MAP_BLEND_OP_CMD(unit) | + TEXPIPE_COLOR | + ENABLE_TEXOUTPUT_WRT_SEL | + TEXOP_OUTPUT_CURRENT | + DISABLE_TEX_CNTRL_STAGE | + TEXOP_MODIFY_PARMS | + blendop); + + imesa->TexBlend[unit][used++] = (STATE3D_MAP_BLEND_OP_CMD(unit) | + TEXPIPE_ALPHA | + ENABLE_TEXOUTPUT_WRT_SEL | + TEXOP_OUTPUT_CURRENT | + TEXOP_MODIFY_PARMS | + ablendop); + + for ( i = 0 ; i < numColorArgs ; i++ ) { + imesa->TexBlend[unit][used++] = (STATE3D_MAP_BLEND_ARG_CMD(unit) | + tex_blend_rgb[i] | + args_RGB[i]); + } + + for ( i = 0 ; i < numAlphaArgs ; i++ ) { + imesa->TexBlend[unit][used++] = (STATE3D_MAP_BLEND_ARG_CMD(unit) | + tex_blend_a[i] | + args_A[i]); + } - /* Build Alpha pipeline */ - imesa->TexBlend[unit][4] = (STATE3D_MAP_BLEND_OP_CMD(unit) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_MODIFY_PARMS | - ablendop); - imesa->TexBlend[unit][5] = (STATE3D_MAP_BLEND_ARG_CMD(unit) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - args_A[0]); - imesa->TexBlend[unit][6] = (STATE3D_MAP_BLEND_ARG_CMD(unit) | - TEXPIPE_ALPHA | - TEXBLEND_ARG2 | - TEXBLENDARG_MODIFY_PARMS | - args_A[1]); - imesa->TexBlend[unit][7] = (STATE3D_MAP_BLEND_ARG_CMD(unit) | - TEXPIPE_ALPHA | - TEXBLEND_ARG0 | - TEXBLENDARG_MODIFY_PARMS | - args_A[2]); - { + if ( need_constant_color ) { GLubyte r, g, b, a; - GLfloat *fc = texUnit->EnvColor; + const GLfloat * const fc = texUnit->EnvColor; FLOAT_COLOR_TO_UBYTE_COLOR(r, fc[RCOMP]); FLOAT_COLOR_TO_UBYTE_COLOR(g, fc[GCOMP]); FLOAT_COLOR_TO_UBYTE_COLOR(b, fc[BCOMP]); FLOAT_COLOR_TO_UBYTE_COLOR(a, fc[ACOMP]); - imesa->TexBlend[unit][8] = STATE3D_COLOR_FACTOR_CMD(unit); - imesa->TexBlend[unit][9] = ((a << 24) | - (r << 16) | - (g << 8) | - b); - } - imesa->TexBlendWordsUsed[unit] = 10; -} - - - - -static void i830UpdateTexEnv( GLcontext *ctx, GLuint unit ) -{ - i830ContextPtr imesa = I830_CONTEXT(ctx); - const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - const struct gl_texture_object *tObj = texUnit->_Current; - i830TextureObjectPtr t = (i830TextureObjectPtr)tObj->DriverData; - GLuint col; - - imesa->TexBlendWordsUsed[unit] = 0; - - if (0) fprintf(stderr, "i830UpdateTexEnv called : %s\n", - _mesa_lookup_enum_by_nr(texUnit->EnvMode)); - - if(texUnit->EnvMode == GL_COMBINE) { - i830SetTexEnvCombine(imesa, - texUnit, - unit); - } else { - i830SetBlend_GL1_2(imesa, - unit, - texUnit->EnvMode, - t->image[0][0].internalFormat); - - /* add blend color */ - { - GLubyte r, g, b, a; - GLfloat *fc = texUnit->EnvColor; - - FLOAT_COLOR_TO_UBYTE_COLOR(r, fc[RCOMP]); - FLOAT_COLOR_TO_UBYTE_COLOR(g, fc[GCOMP]); - FLOAT_COLOR_TO_UBYTE_COLOR(b, fc[BCOMP]); - FLOAT_COLOR_TO_UBYTE_COLOR(a, fc[ACOMP]); - - col = ((a << 24) | - (r << 16) | - (g << 8) | - b); - } - - { - int i; - - i = imesa->TexBlendWordsUsed[unit]; - imesa->TexBlend[unit][i++] = STATE3D_COLOR_FACTOR_CMD(unit); - imesa->TexBlend[unit][i++] = col; - - imesa->TexBlendWordsUsed[unit] = i; - } + imesa->TexBlend[unit][used++] = STATE3D_COLOR_FACTOR_CMD(unit); + imesa->TexBlend[unit][used++] = ((a << 24) | (r << 16) | (g << 8) | b); } + imesa->TexBlendWordsUsed[unit] = used; I830_STATECHANGE( imesa, I830_UPLOAD_TEXBLEND_N(unit) ); } @@ -1529,6 +683,3 @@ void i830UpdateTextureState( GLcontext *ctx ) imesa->TexBlend[0][pipe_num] |= TEXOP_LAST_STAGE; } } - - - |