diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_util.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_util.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_util.c b/src/mesa/drivers/dri/i965/brw_util.c new file mode 100644 index 00000000000..5957b717218 --- /dev/null +++ b/src/mesa/drivers/dri/i965/brw_util.c @@ -0,0 +1,188 @@ +/* + Copyright (C) Intel Corp. 2006. All Rights Reserved. + Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to + develop this 3D driver. + + 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, sublicense, 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 NONINFRINGEMENT. + IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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. + + **********************************************************************/ + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "brw_util.h" +#include "mtypes.h" +#include "shader/program.h" +#include "brw_defines.h" + +GLuint brw_count_bits( GLuint val ) +{ + GLuint i; + for (i = 0; val ; val >>= 1) + if (val & 1) + i++; + return i; +} + + +static GLuint brw_parameter_state_flags(const enum state_index state[]) +{ + switch (state[0]) { + case STATE_MATERIAL: + case STATE_LIGHT: + case STATE_LIGHTMODEL_AMBIENT: + case STATE_LIGHTMODEL_SCENECOLOR: + case STATE_LIGHTPROD: + return _NEW_LIGHT; + + case STATE_TEXGEN: + case STATE_TEXENV_COLOR: + return _NEW_TEXTURE; + + case STATE_FOG_COLOR: + case STATE_FOG_PARAMS: + return _NEW_FOG; + + case STATE_CLIPPLANE: + return _NEW_TRANSFORM; + + case STATE_POINT_SIZE: + case STATE_POINT_ATTENUATION: + return _NEW_POINT; + + case STATE_MATRIX: + switch (state[1]) { + case STATE_MODELVIEW: + return _NEW_MODELVIEW; + case STATE_PROJECTION: + return _NEW_PROJECTION; + case STATE_MVP: + return _NEW_MODELVIEW | _NEW_PROJECTION; + case STATE_TEXTURE: + return _NEW_TEXTURE_MATRIX; + case STATE_PROGRAM: + return _NEW_TRACK_MATRIX; + default: + assert(0); + return 0; + } + + case STATE_DEPTH_RANGE: + return _NEW_VIEWPORT; + + case STATE_FRAGMENT_PROGRAM: + case STATE_VERTEX_PROGRAM: + return _NEW_PROGRAM; + + case STATE_INTERNAL: + switch (state[1]) { + case STATE_NORMAL_SCALE: + return _NEW_MODELVIEW; + default: + assert(0); + return 0; + } + + default: + assert(0); + return 0; + } +} + + +GLuint +brw_parameter_list_state_flags(struct gl_program_parameter_list *paramList) +{ + GLuint i; + GLuint result = 0; + + if (!paramList) + return 0; + + for (i = 0; i < paramList->NumParameters; i++) { + if (paramList->Parameters[i].Type == PROGRAM_STATE_VAR) { + result |= brw_parameter_state_flags(paramList->Parameters[i].StateIndexes); + } + } + + return result; +} + + +GLuint brw_translate_blend_equation( GLenum mode ) +{ + switch (mode) { + case GL_FUNC_ADD: + return BRW_BLENDFUNCTION_ADD; + case GL_MIN: + return BRW_BLENDFUNCTION_MIN; + case GL_MAX: + return BRW_BLENDFUNCTION_MAX; + case GL_FUNC_SUBTRACT: + return BRW_BLENDFUNCTION_SUBTRACT; + case GL_FUNC_REVERSE_SUBTRACT: + return BRW_BLENDFUNCTION_REVERSE_SUBTRACT; + default: + assert(0); + return BRW_BLENDFUNCTION_ADD; + } +} + +GLuint brw_translate_blend_factor( GLenum factor ) +{ + switch(factor) { + case GL_ZERO: + return BRW_BLENDFACTOR_ZERO; + case GL_SRC_ALPHA: + return BRW_BLENDFACTOR_SRC_ALPHA; + case GL_ONE: + return BRW_BLENDFACTOR_ONE; + case GL_SRC_COLOR: + return BRW_BLENDFACTOR_SRC_COLOR; + case GL_ONE_MINUS_SRC_COLOR: + return BRW_BLENDFACTOR_INV_SRC_COLOR; + case GL_DST_COLOR: + return BRW_BLENDFACTOR_DST_COLOR; + case GL_ONE_MINUS_DST_COLOR: + return BRW_BLENDFACTOR_INV_DST_COLOR; + case GL_ONE_MINUS_SRC_ALPHA: + return BRW_BLENDFACTOR_INV_SRC_ALPHA; + case GL_DST_ALPHA: + return BRW_BLENDFACTOR_DST_ALPHA; + case GL_ONE_MINUS_DST_ALPHA: + return BRW_BLENDFACTOR_INV_DST_ALPHA; + case GL_SRC_ALPHA_SATURATE: + return BRW_BLENDFACTOR_SRC_ALPHA_SATURATE; + case GL_CONSTANT_COLOR: + return BRW_BLENDFACTOR_CONST_COLOR; + case GL_ONE_MINUS_CONSTANT_COLOR: + return BRW_BLENDFACTOR_INV_CONST_COLOR; + case GL_CONSTANT_ALPHA: + return BRW_BLENDFACTOR_CONST_ALPHA; + case GL_ONE_MINUS_CONSTANT_ALPHA: + return BRW_BLENDFACTOR_INV_CONST_ALPHA; + default: + assert(0); + return BRW_BLENDFACTOR_ZERO; + } +} |