diff options
| author | Chia-I Wu <olvaffe@gmail.com> | 2009-09-15 14:16:22 +0800 |
|---|---|---|
| committer | Chia-I Wu <olvaffe@gmail.com> | 2009-09-15 14:16:22 +0800 |
| commit | e2ba90a9cc762cf00a168f0a59d31e7dc52fc42e (patch) | |
| tree | fe3206d7602ad935296884742980f3c4d30bd867 /src/mesa/shader/slang | |
| parent | 11a4292d4eb515813b82b8d688a318adef66b3e6 (diff) | |
| parent | b4b8800315637d9218a81c76f09df7d601710d29 (diff) | |
Merge commit 'eee/mesa-es' into android
Diffstat (limited to 'src/mesa/shader/slang')
25 files changed, 2252 insertions, 953 deletions
diff --git a/src/mesa/shader/slang/library/slang_common_builtin.gc b/src/mesa/shader/slang/library/slang_common_builtin.gc index 230c57cea8..9764fc25b0 100644 --- a/src/mesa/shader/slang/library/slang_common_builtin.gc +++ b/src/mesa/shader/slang/library/slang_common_builtin.gc @@ -1659,76 +1659,76 @@ bvec4 not (const bvec4 v) vec4 texture1D(const sampler1D sampler, const float coord) { - __asm vec4_tex1d __retVal, sampler, coord; + __asm vec4_tex_1d __retVal, sampler, coord; } vec4 texture1DProj(const sampler1D sampler, const vec2 coord) { // need to swizzle .y into .w - __asm vec4_texp1d __retVal, sampler, coord.xyyy; + __asm vec4_tex_1d_proj __retVal, sampler, coord.xyyy; } vec4 texture1DProj(const sampler1D sampler, const vec4 coord) { - __asm vec4_texp1d __retVal, sampler, coord; + __asm vec4_tex_1d_proj __retVal, sampler, coord; } vec4 texture2D(const sampler2D sampler, const vec2 coord) { - __asm vec4_tex2d __retVal, sampler, coord; + __asm vec4_tex_2d __retVal, sampler, coord; } vec4 texture2DProj(const sampler2D sampler, const vec3 coord) { // need to swizzle 'z' into 'w'. - __asm vec4_texp2d __retVal, sampler, coord.xyzz; + __asm vec4_tex_2d_proj __retVal, sampler, coord.xyzz; } vec4 texture2DProj(const sampler2D sampler, const vec4 coord) { - __asm vec4_texp2d __retVal, sampler, coord; + __asm vec4_tex_2d_proj __retVal, sampler, coord; } vec4 texture3D(const sampler3D sampler, const vec3 coord) { - __asm vec4_tex3d __retVal, sampler, coord; + __asm vec4_tex_3d __retVal, sampler, coord; } vec4 texture3DProj(const sampler3D sampler, const vec4 coord) { - __asm vec4_texp3d __retVal, sampler, coord; + __asm vec4_tex_3d_proj __retVal, sampler, coord; } vec4 textureCube(const samplerCube sampler, const vec3 coord) { - __asm vec4_texcube __retVal, sampler, coord; + __asm vec4_tex_cube __retVal, sampler, coord; } vec4 shadow1D(const sampler1DShadow sampler, const vec3 coord) { - __asm vec4_tex1d __retVal, sampler, coord; + __asm vec4_tex_1d_shadow __retVal, sampler, coord; } vec4 shadow1DProj(const sampler1DShadow sampler, const vec4 coord) { // .s and .p will be divided by .q - __asm vec4_texp1d __retVal, sampler, coord; + __asm vec4_tex_1d_proj_shadow __retVal, sampler, coord; } vec4 shadow2D(const sampler2DShadow sampler, const vec3 coord) { - __asm vec4_tex2d __retVal, sampler, coord; + __asm vec4_tex_2d_shadow __retVal, sampler, coord; } vec4 shadow2DProj(const sampler2DShadow sampler, const vec4 coord) { // .s, .t and .p will be divided by .q - __asm vec4_texp2d __retVal, sampler, coord; + __asm vec4_tex_2d_proj_shadow __retVal, sampler, coord; } @@ -1741,22 +1741,22 @@ vec4 texture2DRect(const sampler2DRect sampler, const vec2 coord) vec4 texture2DRectProj(const sampler2DRect sampler, const vec3 coord) { // need to swizzle .y into .w - __asm vec4_texp_rect __retVal, sampler, coord.xyzz; + __asm vec4_tex_rect_proj __retVal, sampler, coord.xyzz; } vec4 texture2DRectProj(const sampler2DRect sampler, const vec4 coord) { - __asm vec4_texp_rect __retVal, sampler, ccoord; + __asm vec4_tex_rect_proj __retVal, sampler, ccoord; } vec4 shadow2DRect(const sampler2DRectShadow sampler, const vec3 coord) { - __asm vec4_tex_rect __retVal, sampler, coord; + __asm vec4_tex_rect_shadow __retVal, sampler, coord; } vec4 shadow2DRectProj(const sampler2DRectShadow sampler, const vec4 coord) { - __asm vec4_texp_rect __retVal, sampler, coord; + __asm vec4_tex_rect_proj_shadow __retVal, sampler, coord; } diff --git a/src/mesa/shader/slang/library/slang_common_builtin_gc.h b/src/mesa/shader/slang/library/slang_common_builtin_gc.h index 759bf247d8..78a7b83ec1 100644 --- a/src/mesa/shader/slang/library/slang_common_builtin_gc.h +++ b/src/mesa/shader/slang/library/slang_common_builtin_gc.h @@ -744,125 +744,129 @@ 120,121,122,0,0,18,118,0,0,17,48,0,48,0,0,0,0,0,1,90,95,0,0,4,0,0,110,111,116,0,1,1,0,0,4,0,118,0, 0,0,1,4,118,101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,97,108,0,0,18,118,0,0,17,48,0,48,0, 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+116,86,97,108,0,59,120,0,58,110,111,105,115,101,49,0,0,18,120,0,0,0,20,0,9,18,95,95,114,101,116,86, +97,108,0,59,121,0,58,110,111,105,115,101,49,0,0,18,120,0,58,118,101,99,52,0,0,17,49,57,0,51,52,0,0, +0,17,55,0,54,54,0,0,0,17,51,0,50,51,0,0,0,17,50,0,55,55,0,0,0,0,46,0,0,20,0,9,18,95,95,114,101,116, +86,97,108,0,59,122,0,58,110,111,105,115,101,49,0,0,18,120,0,58,118,101,99,52,0,0,17,53,0,52,55,0,0, +0,17,49,55,0,56,53,0,0,0,17,49,49,0,48,52,0,0,0,17,49,51,0,49,57,0,0,0,0,46,0,0,20,0,9,18,95,95, +114,101,116,86,97,108,0,59,119,0,58,110,111,105,115,101,49,0,0,18,120,0,58,118,101,99,52,0,0,17,50, +51,0,53,52,0,0,0,17,50,57,0,49,49,0,0,0,17,51,49,0,57,49,0,0,0,17,51,55,0,52,56,0,0,0,0,46,0,0,20, +0,0,0 diff --git a/src/mesa/shader/slang/library/slang_fragment_builtin.gc b/src/mesa/shader/slang/library/slang_fragment_builtin.gc index 416c6ff313..2e063e6416 100644 --- a/src/mesa/shader/slang/library/slang_fragment_builtin.gc +++ b/src/mesa/shader/slang/library/slang_fragment_builtin.gc @@ -46,7 +46,7 @@ vec4 texture1D(const sampler1D sampler, const float coord, const float bias) vec4 coord4; coord4.x = coord; coord4.w = bias; - __asm vec4_texb1d __retVal, sampler, coord4; + __asm vec4_tex_1d_bias __retVal, sampler, coord4; } vec4 texture1DProj(const sampler1D sampler, const vec2 coord, const float bias) @@ -55,7 +55,7 @@ vec4 texture1DProj(const sampler1D sampler, const vec2 coord, const float bias) vec4 pcoord; pcoord.x = coord.x / coord.y; pcoord.w = bias; - __asm vec4_texb1d __retVal, sampler, pcoord; + __asm vec4_tex_1d_bias __retVal, sampler, pcoord; } vec4 texture1DProj(const sampler1D sampler, const vec4 coord, const float bias) @@ -64,7 +64,7 @@ vec4 texture1DProj(const sampler1D sampler, const vec4 coord, const float bias) vec4 pcoord; pcoord.x = coord.x / coord.z; pcoord.w = bias; - __asm vec4_texb1d __retVal, sampler, pcoord; + __asm vec4_tex_1d_bias __retVal, sampler, pcoord; } @@ -75,7 +75,7 @@ vec4 texture2D(const sampler2D sampler, const vec2 coord, const float bias) vec4 coord4; coord4.xy = coord.xy; coord4.w = bias; - __asm vec4_texb2d __retVal, sampler, coord4; + __asm vec4_tex_2d_bias __retVal, sampler, coord4; } vec4 texture2DProj(const sampler2D sampler, const vec3 coord, const float bias) @@ -84,7 +84,7 @@ vec4 texture2DProj(const sampler2D sampler, const vec3 coord, const float bias) vec4 pcoord; pcoord.xy = coord.xy / coord.z; pcoord.w = bias; - __asm vec4_texb2d __retVal, sampler, pcoord; + __asm vec4_tex_2d_bias __retVal, sampler, pcoord; } vec4 texture2DProj(const sampler2D sampler, const vec4 coord, const float bias) @@ -93,7 +93,7 @@ vec4 texture2DProj(const sampler2D sampler, const vec4 coord, const float bias) vec4 pcoord; pcoord.xy = coord.xy / coord.w; pcoord.w = bias; - __asm vec4_texb2d __retVal, sampler, pcoord; + __asm vec4_tex_2d_bias __retVal, sampler, pcoord; } @@ -104,7 +104,7 @@ vec4 texture3D(const sampler3D sampler, const vec3 coord, const float bias) vec4 coord4; coord4.xyz = coord.xyz; coord4.w = bias; - __asm vec4_texb3d __retVal, sampler, coord4; + __asm vec4_tex_3d_bias __retVal, sampler, coord4; } vec4 texture3DProj(const sampler3D sampler, const vec4 coord, const float bias) @@ -113,7 +113,7 @@ vec4 texture3DProj(const sampler3D sampler, const vec4 coord, const float bias) vec4 pcoord; pcoord.xyz = coord.xyz / coord.w; pcoord.w = bias; - __asm vec4_texb3d __retVal, sampler, pcoord; + __asm vec4_tex_3d_bias __retVal, sampler, pcoord; } @@ -124,21 +124,17 @@ vec4 textureCube(const samplerCube sampler, const vec3 coord, const float bias) vec4 coord4; coord4.xyz = coord; coord4.w = bias; - __asm vec4_texcube __retVal, sampler, coord4; + __asm vec4_tex_cube __retVal, sampler, coord4; } - -// For shadow textures, we use the regular tex instructions since they should -// do the depth comparison step. - vec4 shadow1D(const sampler1DShadow sampler, const vec3 coord, const float bias) { vec4 coord4; coord4.xyz = coord; coord4.w = bias; - __asm vec4_texb1d __retVal, sampler, coord4; + __asm vec4_tex_1d_bias_shadow __retVal, sampler, coord4; } vec4 shadow1DProj(const sampler1DShadow sampler, const vec4 coord, const float bias) @@ -147,7 +143,7 @@ vec4 shadow1DProj(const sampler1DShadow sampler, const vec4 coord, const float b pcoord.x = coord.x / coord.w; pcoord.z = coord.z; pcoord.w = bias; - __asm vec4_texb1d __retVal, sampler, pcoord; + __asm vec4_tex_1d_bias_shadow __retVal, sampler, pcoord; } vec4 shadow2D(const sampler2DShadow sampler, const vec3 coord, const float bias) @@ -155,7 +151,7 @@ vec4 shadow2D(const sampler2DShadow sampler, const vec3 coord, const float bias) vec4 coord4; coord4.xyz = coord; coord4.w = bias; - __asm vec4_texb2d __retVal, sampler, coord4; + __asm vec4_tex_2d_bias_shadow __retVal, sampler, coord4; } vec4 shadow2DProj(const sampler2DShadow sampler, const vec4 coord, const float bias) @@ -164,7 +160,7 @@ vec4 shadow2DProj(const sampler2DShadow sampler, const vec4 coord, const float b pcoord.xy = coord.xy / coord.w; pcoord.z = coord.z; pcoord.w = bias; - __asm vec4_texb2d __retVal, sampler, pcoord; + __asm vec4_tex_2d_bias_shadow __retVal, sampler, pcoord; } diff --git a/src/mesa/shader/slang/library/slang_fragment_builtin_gc.h b/src/mesa/shader/slang/library/slang_fragment_builtin_gc.h index 738a0f9295..c5a1cce2a4 100644 --- a/src/mesa/shader/slang/library/slang_fragment_builtin_gc.h +++ b/src/mesa/shader/slang/library/slang_fragment_builtin_gc.h @@ -14,94 +14,97 @@ 108,101,114,0,0,1,1,0,0,9,0,99,111,111,114,100,0,0,1,1,0,0,9,0,98,105,97,115,0,0,0,1,3,2,90,95,0,0, 12,0,1,99,111,111,114,100,52,0,0,0,9,18,99,111,111,114,100,52,0,59,120,0,18,99,111,111,114,100,0, 20,0,9,18,99,111,111,114,100,52,0,59,119,0,18,98,105,97,115,0,20,0,4,118,101,99,52,95,116,101,120, -98,49,100,0,18,95,95,114,101,116,86,97,108,0,0,18,115,97,109,112,108,101,114,0,0,18,99,111,111,114, -100,52,0,0,0,0,1,90,95,0,0,12,0,0,116,101,120,116,117,114,101,49,68,80,114,111,106,0,1,1,0,0,16,0, 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+115,0,0,58,100,70,100,121,0,0,18,112,0,0,0,0,0,46,0,0,0 diff --git a/src/mesa/shader/slang/library/slang_version_syn.h b/src/mesa/shader/slang/library/slang_version_syn.h deleted file mode 100644 index 3b94d85927..0000000000 --- a/src/mesa/shader/slang/library/slang_version_syn.h +++ /dev/null @@ -1,64 +0,0 @@ -".syntax version_directive;\n" -"version_directive\n" -" version_directive_1 .and .loop version_directive_2;\n" -"version_directive_1\n" -" prior_optional_spaces .and optional_version_directive .and .true .emit $;\n" -"version_directive_2\n" -" prior_optional_spaces .and version_directive_body .and .true .emit $;\n" -"optional_version_directive\n" -" version_directive_body .or .true .emit 10 .emit 1;\n" -"version_directive_body\n" -" '#' .and optional_space .and \"version\" .and space .and version_number .and optional_space .and\n" -" new_line;\n" -"version_number\n" -" version_number_110;\n" -"version_number_110\n" -" leading_zeroes .and \"110\" .emit 10 .emit 1;\n" -"leading_zeroes\n" -" .loop zero;\n" -"zero\n" -" '0';\n" -"space\n" -" single_space .and .loop single_space;\n" -"optional_space\n" -" .loop single_space;\n" -"single_space\n" -" ' ' .or '\\t';\n" -"prior_optional_spaces\n" -" .loop prior_space;\n" -"prior_space\n" -" c_style_comment_block .or cpp_style_comment_block .or space .or new_line;\n" -"c_style_comment_block\n" -" '/' .and '*' .and c_style_comment_rest;\n" -"c_style_comment_rest\n" -" .loop c_style_comment_char_no_star .and c_style_comment_rest_1;\n" -"c_style_comment_rest_1\n" -" c_style_comment_end .or c_style_comment_rest_2;\n" -"c_style_comment_rest_2\n" -" '*' .and c_style_comment_rest;\n" -"c_style_comment_char_no_star\n" -" '\\x2B'-'\\xFF' .or '\\x01'-'\\x29';\n" -"c_style_comment_end\n" -" '*' .and '/';\n" -"cpp_style_comment_block\n" -" '/' .and '/' .and cpp_style_comment_block_1;\n" -"cpp_style_comment_block_1\n" -" cpp_style_comment_block_2 .or cpp_style_comment_block_3;\n" -"cpp_style_comment_block_2\n" -" .loop cpp_style_comment_char .and new_line;\n" -"cpp_style_comment_block_3\n" -" .loop cpp_style_comment_char;\n" -"cpp_style_comment_char\n" -" '\\x0E'-'\\xFF' .or '\\x01'-'\\x09' .or '\\x0B'-'\\x0C';\n" -"new_line\n" -" cr_lf .or lf_cr .or '\\n' .or '\\r';\n" -"cr_lf\n" -" '\\r' .and '\\n';\n" -"lf_cr\n" -" '\\n' .and '\\r';\n" -".string __string_filter;\n" -"__string_filter\n" -" .loop __identifier_char;\n" -"__identifier_char\n" -" 'a'-'z' .or 'A'-'Z' .or '_' .or '0'-'9';\n" -"" diff --git a/src/mesa/shader/slang/library/slang_vertex_builtin.gc b/src/mesa/shader/slang/library/slang_vertex_builtin.gc index 17e86d9a0e..9ad5f35425 100644 --- a/src/mesa/shader/slang/library/slang_vertex_builtin.gc +++ b/src/mesa/shader/slang/library/slang_vertex_builtin.gc @@ -78,7 +78,7 @@ vec4 texture1DLod(const sampler1D sampler, const float coord, const float lod) vec4 coord4; coord4.x = coord; coord4.w = lod; - __asm vec4_texb1d __retVal, sampler, coord4; + __asm vec4_tex_1d_bias __retVal, sampler, coord4; } vec4 texture1DProjLod(const sampler1D sampler, const vec2 coord, const float lod) @@ -86,7 +86,7 @@ vec4 texture1DProjLod(const sampler1D sampler, const vec2 coord, const float lod vec4 pcoord; pcoord.x = coord.x / coord.y; pcoord.w = lod; - __asm vec4_texb1d __retVal, sampler, pcoord; + __asm vec4_tex_1d_bias __retVal, sampler, pcoord; } vec4 texture1DProjLod(const sampler1D sampler, const vec4 coord, const float lod) @@ -94,7 +94,7 @@ vec4 texture1DProjLod(const sampler1D sampler, const vec4 coord, const float lod vec4 pcoord; pcoord.x = coord.x / coord.z; pcoord.w = lod; - __asm vec4_texb1d __retVal, sampler, pcoord; + __asm vec4_tex_1d_bias __retVal, sampler, pcoord; } @@ -104,7 +104,7 @@ vec4 texture2DLod(const sampler2D sampler, const vec2 coord, const float lod) vec4 coord4; coord4.xy = coord.xy; coord4.w = lod; - __asm vec4_texb2d __retVal, sampler, coord4; + __asm vec4_tex_2d_bias __retVal, sampler, coord4; } vec4 texture2DProjLod(const sampler2D sampler, const vec3 coord, const float lod) @@ -112,7 +112,7 @@ vec4 texture2DProjLod(const sampler2D sampler, const vec3 coord, const float lod vec4 pcoord; pcoord.xy = coord.xy / coord.z; pcoord.w = lod; - __asm vec4_texb2d __retVal, sampler, pcoord; + __asm vec4_tex_2d_bias __retVal, sampler, pcoord; } vec4 texture2DProjLod(const sampler2D sampler, const vec4 coord, const float lod) @@ -120,7 +120,7 @@ vec4 texture2DProjLod(const sampler2D sampler, const vec4 coord, const float lod vec4 pcoord; pcoord.xy = coord.xy / coord.z; pcoord.w = lod; - __asm vec4_texb2d __retVal, sampler, pcoord; + __asm vec4_tex_2d_bias __retVal, sampler, pcoord; } @@ -129,16 +129,16 @@ vec4 texture3DLod(const sampler3D sampler, const vec3 coord, const float lod) vec4 coord4; coord4.xyz = coord.xyz; coord4.w = lod; - __asm vec4_texb3d __retVal, sampler, coord4; + __asm vec4_tex_3d_bias __retVal, sampler, coord4; } vec4 texture3DProjLod(const sampler3D sampler, const vec4 coord, const float lod) { - // do projection here (there's no vec4_texbp3d instruction) + // do projection here (there's no vec4_tex_3d_bias_proj instruction) vec4 pcoord; pcoord.xyz = coord.xyz / coord.w; pcoord.w = lod; - __asm vec4_texb3d __retVal, sampler, pcoord; + __asm vec4_tex_3d_bias __retVal, sampler, pcoord; } @@ -147,7 +147,7 @@ vec4 textureCubeLod(const samplerCube sampler, const vec3 coord, const float lod vec4 coord4; coord4.xyz = coord; coord4.w = lod; - __asm vec4_texcube __retVal, sampler, coord4; + __asm vec4_tex_cube __retVal, sampler, coord4; } @@ -156,7 +156,7 @@ vec4 shadow1DLod(const sampler1DShadow sampler, const vec3 coord, const float lo vec4 coord4; coord4.xyz = coord; coord4.w = lod; - __asm vec4_texb1d __retVal, sampler, coord4; + __asm vec4_tex_1d_bias_shadow __retVal, sampler, coord4; } vec4 shadow1DProjLod(const sampler1DShadow sampler, const vec4 coord, @@ -166,7 +166,7 @@ vec4 shadow1DProjLod(const sampler1DShadow sampler, const vec4 coord, pcoord.x = coord.x / coord.w; pcoord.z = coord.z; pcoord.w = lod; - __asm vec4_texb1d __retVal, sampler, pcoord; + __asm vec4_tex_1d_bias_shadow __retVal, sampler, pcoord; } @@ -175,7 +175,7 @@ vec4 shadow2DLod(const sampler2DShadow sampler, const vec3 coord, const float lo vec4 coord4; coord4.xyz = coord; coord4.w = lod; - __asm vec4_texb2d __retVal, sampler, coord4; + __asm vec4_tex_2d_bias_shadow __retVal, sampler, coord4; } vec4 shadow2DProjLod(const sampler2DShadow sampler, const vec4 coord, @@ -185,6 +185,6 @@ vec4 shadow2DProjLod(const sampler2DShadow sampler, const vec4 coord, pcoord.xy = coord.xy / coord.w; pcoord.z = coord.z; pcoord.w = lod; - __asm vec4_texb2d __retVal, sampler, pcoord; + __asm vec4_tex_2d_bias_shadow __retVal, sampler, pcoord; } diff --git a/src/mesa/shader/slang/library/slang_vertex_builtin_gc.h b/src/mesa/shader/slang/library/slang_vertex_builtin_gc.h index 2cb91bf268..e5a252b019 100644 --- a/src/mesa/shader/slang/library/slang_vertex_builtin_gc.h +++ b/src/mesa/shader/slang/library/slang_vertex_builtin_gc.h @@ 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+95,98,105,97,115,95,115,104,97,100,111,119,0,18,95,95,114,101,116,86,97,108,0,0,18,115,97,109,112, 108,101,114,0,0,18,112,99,111,111,114,100,0,0,0,0,0 diff --git a/src/mesa/shader/slang/slang_builtin.c b/src/mesa/shader/slang/slang_builtin.c index c0f4c79e13..bef0f85653 100644 --- a/src/mesa/shader/slang/slang_builtin.c +++ b/src/mesa/shader/slang/slang_builtin.c @@ -85,7 +85,7 @@ lookup_statevar(const char *var, GLint index1, GLint index2, const char *field, { "gl_TextureMatrixTranspose", STATE_TEXTURE_MATRIX, 0 }, { "gl_TextureMatrixInverseTranspose", STATE_TEXTURE_MATRIX, STATE_MATRIX_INVERSE }, - { "gl_NormalMatrix", STATE_MODELVIEW_MATRIX, STATE_MATRIX_TRANSPOSE }, + { "gl_NormalMatrix", STATE_MODELVIEW_MATRIX, STATE_MATRIX_INVERSE }, { NULL, 0, 0 } }; @@ -111,10 +111,9 @@ lookup_statevar(const char *var, GLint index1, GLint index2, const char *field, if (isMatrix) { if (tokens[0] == STATE_TEXTURE_MATRIX) { - if (index1 >= 0) { - tokens[1] = index1; /* which texture matrix */ - index1 = 0; /* prevent extra addition at end of function */ - } + /* texture_matrix[index1][index2] */ + tokens[1] = index1 >= 0 ? index1 : 0; /* which texture matrix */ + index1 = index2; /* move matrix row value to index1 */ } if (index1 < 0) { /* index1 is unused: prevent extra addition at end of function */ @@ -437,7 +436,7 @@ emit_statevars(const char *name, int array_len, struct gl_program_parameter_list *paramList) { if (type->type == SLANG_SPEC_ARRAY) { - GLint i, pos; + GLint i, pos = -1; assert(array_len > 0); if (strcmp(name, "gl_ClipPlane") == 0) { tokens[0] = STATE_CLIPPLANE; @@ -457,28 +456,36 @@ emit_statevars(const char *name, int array_len, tokens[0] = STATE_TEXENV_COLOR; } else if (strcmp(name, "gl_EyePlaneS") == 0) { - tokens[0] = STATE_TEXGEN_EYE_S; + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_EYE_S; } else if (strcmp(name, "gl_EyePlaneT") == 0) { - tokens[0] = STATE_TEXGEN_EYE_T; + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_EYE_T; } else if (strcmp(name, "gl_EyePlaneR") == 0) { - tokens[0] = STATE_TEXGEN_EYE_R; + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_EYE_R; } else if (strcmp(name, "gl_EyePlaneQ") == 0) { - tokens[0] = STATE_TEXGEN_EYE_Q; + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_EYE_Q; } else if (strcmp(name, "gl_ObjectPlaneS") == 0) { - tokens[0] = STATE_TEXGEN_OBJECT_S; + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_OBJECT_S; } else if (strcmp(name, "gl_ObjectPlaneT") == 0) { - tokens[0] = STATE_TEXGEN_OBJECT_T; + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_OBJECT_T; } else if (strcmp(name, "gl_ObjectPlaneR") == 0) { - tokens[0] = STATE_TEXGEN_OBJECT_R; + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_OBJECT_R; } else if (strcmp(name, "gl_ObjectPlaneQ") == 0) { - tokens[0] = STATE_TEXGEN_OBJECT_Q; + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_OBJECT_Q; } else { return -1; /* invalid array name */ @@ -494,7 +501,7 @@ emit_statevars(const char *name, int array_len, } else if (type->type == SLANG_SPEC_STRUCT) { const slang_variable_scope *fields = type->_struct->fields; - GLuint i, pos; + GLuint i, pos = 0; for (i = 0; i < fields->num_variables; i++) { const slang_variable *var = fields->variables[i]; GLint p = emit_statevars(var->a_name, 0, &var->type.specifier, @@ -674,7 +681,9 @@ _slang_alloc_statevar(slang_ir_node *n, if (n->Opcode == IR_ELEMENT) { /* XXX can only handle constant indexes for now */ if (n->Children[1]->Opcode == IR_FLOAT) { - index2 = (GLint) n->Children[1]->Value[0]; + /* two-dimensional array index: mat[i][j] */ + index2 = index1; + index1 = (GLint) n->Children[1]->Value[0]; } else { *direct = GL_FALSE; @@ -701,3 +710,186 @@ _slang_alloc_statevar(slang_ir_node *n, *direct = GL_FALSE; return alloc_state_var_array(n->Var, paramList); } + + + + +#define SWIZZLE_ZWWW MAKE_SWIZZLE4(SWIZZLE_Z, SWIZZLE_W, SWIZZLE_W, SWIZZLE_W) + + +/** Predefined shader inputs */ +struct input_info +{ + const char *Name; + GLuint Attrib; + GLenum Type; + GLuint Swizzle; +}; + +/** Predefined vertex shader inputs/attributes */ +static const struct input_info vertInputs[] = { + { "gl_Vertex", VERT_ATTRIB_POS, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_Normal", VERT_ATTRIB_NORMAL, GL_FLOAT_VEC3, SWIZZLE_NOOP }, + { "gl_Color", VERT_ATTRIB_COLOR0, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_SecondaryColor", VERT_ATTRIB_COLOR1, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_FogCoord", VERT_ATTRIB_FOG, GL_FLOAT, SWIZZLE_XXXX }, + { "gl_MultiTexCoord0", VERT_ATTRIB_TEX0, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord1", VERT_ATTRIB_TEX1, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord2", VERT_ATTRIB_TEX2, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord3", VERT_ATTRIB_TEX3, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord4", VERT_ATTRIB_TEX4, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord5", VERT_ATTRIB_TEX5, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord6", VERT_ATTRIB_TEX6, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord7", VERT_ATTRIB_TEX7, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { NULL, 0, SWIZZLE_NOOP } +}; + +/** Predefined fragment shader inputs */ +static const struct input_info fragInputs[] = { + { "gl_FragCoord", FRAG_ATTRIB_WPOS, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_Color", FRAG_ATTRIB_COL0, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_SecondaryColor", FRAG_ATTRIB_COL1, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_TexCoord", FRAG_ATTRIB_TEX0, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + /* note: we're packing several quantities into the fogcoord vector */ + { "gl_FogFragCoord", FRAG_ATTRIB_FOGC, GL_FLOAT, SWIZZLE_XXXX }, + { "gl_FrontFacing", FRAG_ATTRIB_FACE, GL_FLOAT, SWIZZLE_XXXX }, + { "gl_PointCoord", FRAG_ATTRIB_PNTC, GL_FLOAT_VEC2, SWIZZLE_XYZW }, + { NULL, 0, SWIZZLE_NOOP } +}; + + +/** + * Return the VERT_ATTRIB_* or FRAG_ATTRIB_* value that corresponds to + * a vertex or fragment program input variable. Return -1 if the input + * name is invalid. + * XXX return size too + */ +GLint +_slang_input_index(const char *name, GLenum target, GLuint *swizzleOut) +{ + const struct input_info *inputs; + GLuint i; + + switch (target) { + case GL_VERTEX_PROGRAM_ARB: + inputs = vertInputs; + break; + case GL_FRAGMENT_PROGRAM_ARB: + inputs = fragInputs; + break; + /* XXX geom program */ + default: + _mesa_problem(NULL, "bad target in _slang_input_index"); + return -1; + } + + ASSERT(MAX_TEXTURE_COORD_UNITS == 8); /* if this fails, fix vertInputs above */ + + for (i = 0; inputs[i].Name; i++) { + if (strcmp(inputs[i].Name, name) == 0) { + /* found */ + *swizzleOut = inputs[i].Swizzle; + return inputs[i].Attrib; + } + } + return -1; +} + + +/** + * Return name of the given vertex attribute (VERT_ATTRIB_x). + */ +const char * +_slang_vert_attrib_name(GLuint attrib) +{ + GLuint i; + assert(attrib < VERT_ATTRIB_GENERIC0); + for (i = 0; vertInputs[i].Name; i++) { + if (vertInputs[i].Attrib == attrib) + return vertInputs[i].Name; + } + return NULL; +} + + +/** + * Return type (GL_FLOAT, GL_FLOAT_VEC2, etc) of the given vertex + * attribute (VERT_ATTRIB_x). + */ +GLenum +_slang_vert_attrib_type(GLuint attrib) +{ + GLuint i; + assert(attrib < VERT_ATTRIB_GENERIC0); + for (i = 0; vertInputs[i].Name; i++) { + if (vertInputs[i].Attrib == attrib) + return vertInputs[i].Type; + } + return GL_NONE; +} + + + + + +/** Predefined shader output info */ +struct output_info +{ + const char *Name; + GLuint Attrib; +}; + +/** Predefined vertex shader outputs */ +static const struct output_info vertOutputs[] = { + { "gl_Position", VERT_RESULT_HPOS }, + { "gl_FrontColor", VERT_RESULT_COL0 }, + { "gl_BackColor", VERT_RESULT_BFC0 }, + { "gl_FrontSecondaryColor", VERT_RESULT_COL1 }, + { "gl_BackSecondaryColor", VERT_RESULT_BFC1 }, + { "gl_TexCoord", VERT_RESULT_TEX0 }, + { "gl_FogFragCoord", VERT_RESULT_FOGC }, + { "gl_PointSize", VERT_RESULT_PSIZ }, + { NULL, 0 } +}; + +/** Predefined fragment shader outputs */ +static const struct output_info fragOutputs[] = { + { "gl_FragColor", FRAG_RESULT_COLOR }, + { "gl_FragDepth", FRAG_RESULT_DEPTH }, + { "gl_FragData", FRAG_RESULT_DATA0 }, + { NULL, 0 } +}; + + +/** + * Return the VERT_RESULT_* or FRAG_RESULT_* value that corresponds to + * a vertex or fragment program output variable. Return -1 for an invalid + * output name. + */ +GLint +_slang_output_index(const char *name, GLenum target) +{ + const struct output_info *outputs; + GLuint i; + + switch (target) { + case GL_VERTEX_PROGRAM_ARB: + outputs = vertOutputs; + break; + case GL_FRAGMENT_PROGRAM_ARB: + outputs = fragOutputs; + break; + /* XXX geom program */ + default: + _mesa_problem(NULL, "bad target in _slang_output_index"); + return -1; + } + + for (i = 0; outputs[i].Name; i++) { + if (strcmp(outputs[i].Name, name) == 0) { + /* found */ + return outputs[i].Attrib; + } + } + return -1; +} diff --git a/src/mesa/shader/slang/slang_builtin.h b/src/mesa/shader/slang/slang_builtin.h index 7f6fe80fcc..f814d11ac7 100644 --- a/src/mesa/shader/slang/slang_builtin.h +++ b/src/mesa/shader/slang/slang_builtin.h @@ -37,4 +37,18 @@ _slang_alloc_statevar(slang_ir_node *n, GLboolean *direct); +extern GLint +_slang_input_index(const char *name, GLenum target, GLuint *swizzleOut); + +extern GLint +_slang_output_index(const char *name, GLenum target); + + +extern const char * +_slang_vert_attrib_name(GLuint attrib); + +extern GLenum +_slang_vert_attrib_type(GLuint attrib); + + #endif /* SLANG_BUILTIN_H */ diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c index 11340d26e2..349f432dec 100644 --- a/src/mesa/shader/slang/slang_codegen.c +++ b/src/mesa/shader/slang/slang_codegen.c @@ -46,6 +46,7 @@ #include "shader/prog_print.h" #include "shader/prog_statevars.h" #include "slang_typeinfo.h" +#include "slang_builtin.h" #include "slang_codegen.h" #include "slang_compile.h" #include "slang_label.h" @@ -75,6 +76,11 @@ const GLuint MAX_FOR_LOOP_UNROLL_COMPLEXITY = 256; static slang_ir_node * _slang_gen_operation(slang_assemble_ctx * A, slang_operation *oper); +static void +slang_substitute(slang_assemble_ctx *A, slang_operation *oper, + GLuint substCount, slang_variable **substOld, + slang_operation **substNew, GLboolean isLHS); + /** * Retrieves type information about an operation. @@ -296,46 +302,6 @@ _slang_array_size(GLint elemSize, GLint arrayLen) } - -/** - * Establish the binding between a slang_ir_node and a slang_variable. - * Then, allocate/attach a slang_ir_storage object to the IR node if needed. - * The IR node must be a IR_VAR or IR_VAR_DECL node. - * \param n the IR node - * \param var the variable to associate with the IR node - */ -static void -_slang_attach_storage(slang_ir_node *n, slang_variable *var) -{ - assert(n); - assert(var); - assert(n->Opcode == IR_VAR || n->Opcode == IR_VAR_DECL); - assert(!n->Var || n->Var == var); - - n->Var = var; - - if (!n->Store) { - /* need to setup storage */ - if (n->Var && n->Var->store) { - /* node storage info = var storage info */ - n->Store = n->Var->store; - } - else { - /* alloc new storage info */ - n->Store = _slang_new_ir_storage(PROGRAM_UNDEFINED, -7, -5); -#if 0 - printf("%s var=%s Store=%p Size=%d\n", __FUNCTION__, - (char*) var->a_name, - (void*) n->Store, n->Store->Size); -#endif - if (n->Var) - n->Var->store = n->Store; - assert(n->Var->store); - } - } -} - - /** * Return the TEXTURE_*_INDEX value that corresponds to a sampler type, * or -1 if the type is not a sampler. @@ -366,109 +332,67 @@ sampler_to_texture_index(const slang_type_specifier_type type) } -#define SWIZZLE_ZWWW MAKE_SWIZZLE4(SWIZZLE_Z, SWIZZLE_W, SWIZZLE_W, SWIZZLE_W) +/** helper to build a SLANG_OPER_IDENTIFIER node */ +static void +slang_operation_identifier(slang_operation *oper, + slang_assemble_ctx *A, + const char *name) +{ + oper->type = SLANG_OPER_IDENTIFIER; + oper->a_id = slang_atom_pool_atom(A->atoms, name); +} + /** - * Return the VERT_ATTRIB_* or FRAG_ATTRIB_* value that corresponds to - * a vertex or fragment program input variable. Return -1 if the input - * name is invalid. - * XXX return size too + * Called when we begin code/IR generation for a new while/do/for loop. */ -static GLint -_slang_input_index(const char *name, GLenum target, GLuint *swizzleOut) +static void +push_loop(slang_assemble_ctx *A, slang_operation *loopOper, slang_ir_node *loopIR) { - struct input_info { - const char *Name; - GLuint Attrib; - GLuint Swizzle; - }; - static const struct input_info vertInputs[] = { - { "gl_Vertex", VERT_ATTRIB_POS, SWIZZLE_NOOP }, - { "gl_Normal", VERT_ATTRIB_NORMAL, SWIZZLE_NOOP }, - { "gl_Color", VERT_ATTRIB_COLOR0, SWIZZLE_NOOP }, - { "gl_SecondaryColor", VERT_ATTRIB_COLOR1, SWIZZLE_NOOP }, - { "gl_FogCoord", VERT_ATTRIB_FOG, SWIZZLE_XXXX }, - { "gl_MultiTexCoord0", VERT_ATTRIB_TEX0, SWIZZLE_NOOP }, - { "gl_MultiTexCoord1", VERT_ATTRIB_TEX1, SWIZZLE_NOOP }, - { "gl_MultiTexCoord2", VERT_ATTRIB_TEX2, SWIZZLE_NOOP }, - { "gl_MultiTexCoord3", VERT_ATTRIB_TEX3, SWIZZLE_NOOP }, - { "gl_MultiTexCoord4", VERT_ATTRIB_TEX4, SWIZZLE_NOOP }, - { "gl_MultiTexCoord5", VERT_ATTRIB_TEX5, SWIZZLE_NOOP }, - { "gl_MultiTexCoord6", VERT_ATTRIB_TEX6, SWIZZLE_NOOP }, - { "gl_MultiTexCoord7", VERT_ATTRIB_TEX7, SWIZZLE_NOOP }, - { NULL, 0, SWIZZLE_NOOP } - }; - static const struct input_info fragInputs[] = { - { "gl_FragCoord", FRAG_ATTRIB_WPOS, SWIZZLE_NOOP }, - { "gl_Color", FRAG_ATTRIB_COL0, SWIZZLE_NOOP }, - { "gl_SecondaryColor", FRAG_ATTRIB_COL1, SWIZZLE_NOOP }, - { "gl_TexCoord", FRAG_ATTRIB_TEX0, SWIZZLE_NOOP }, - /* note: we're packing several quantities into the fogcoord vector */ - { "gl_FogFragCoord", FRAG_ATTRIB_FOGC, SWIZZLE_XXXX }, - { "gl_FrontFacing", FRAG_ATTRIB_FOGC, SWIZZLE_YYYY }, /*XXX*/ - { "gl_PointCoord", FRAG_ATTRIB_FOGC, SWIZZLE_ZWWW }, - { NULL, 0, SWIZZLE_NOOP } - }; - GLuint i; - const struct input_info *inputs - = (target == GL_VERTEX_PROGRAM_ARB) ? vertInputs : fragInputs; + A->LoopOperStack[A->LoopDepth] = loopOper; + A->LoopIRStack[A->LoopDepth] = loopIR; + A->LoopDepth++; +} - ASSERT(MAX_TEXTURE_COORD_UNITS == 8); /* if this fails, fix vertInputs above */ - for (i = 0; inputs[i].Name; i++) { - if (strcmp(inputs[i].Name, name) == 0) { - /* found */ - *swizzleOut = inputs[i].Swizzle; - return inputs[i].Attrib; - } - } - return -1; +/** + * Called when we end code/IR generation for a new while/do/for loop. + */ +static void +pop_loop(slang_assemble_ctx *A) +{ + assert(A->LoopDepth > 0); + A->LoopDepth--; } /** - * Return the VERT_RESULT_* or FRAG_RESULT_* value that corresponds to - * a vertex or fragment program output variable. Return -1 for an invalid - * output name. + * Return pointer to slang_operation for the loop we're currently inside, + * or NULL if not in a loop. */ -static GLint -_slang_output_index(const char *name, GLenum target) +static const slang_operation * +current_loop_oper(const slang_assemble_ctx *A) { - struct output_info { - const char *Name; - GLuint Attrib; - }; - static const struct output_info vertOutputs[] = { - { "gl_Position", VERT_RESULT_HPOS }, - { "gl_FrontColor", VERT_RESULT_COL0 }, - { "gl_BackColor", VERT_RESULT_BFC0 }, - { "gl_FrontSecondaryColor", VERT_RESULT_COL1 }, - { "gl_BackSecondaryColor", VERT_RESULT_BFC1 }, - { "gl_TexCoord", VERT_RESULT_TEX0 }, - { "gl_FogFragCoord", VERT_RESULT_FOGC }, - { "gl_PointSize", VERT_RESULT_PSIZ }, - { NULL, 0 } - }; - static const struct output_info fragOutputs[] = { - { "gl_FragColor", FRAG_RESULT_COLR }, - { "gl_FragDepth", FRAG_RESULT_DEPR }, - { "gl_FragData", FRAG_RESULT_DATA0 }, - { NULL, 0 } - }; - GLuint i; - const struct output_info *outputs - = (target == GL_VERTEX_PROGRAM_ARB) ? vertOutputs : fragOutputs; - - for (i = 0; outputs[i].Name; i++) { - if (strcmp(outputs[i].Name, name) == 0) { - /* found */ - return outputs[i].Attrib; - } - } - return -1; + if (A->LoopDepth > 0) + return A->LoopOperStack[A->LoopDepth - 1]; + else + return NULL; } +/** + * Return pointer to slang_ir_node for the loop we're currently inside, + * or NULL if not in a loop. + */ +static slang_ir_node * +current_loop_ir(const slang_assemble_ctx *A) +{ + if (A->LoopDepth > 0) + return A->LoopIRStack[A->LoopDepth - 1]; + else + return NULL; +} + /**********************************************************************/ @@ -516,18 +440,28 @@ static slang_asm_info AsmInfo[] = { /* float binary op */ { "float_power", IR_POW, 1, 2 }, /* texture / sampler */ - { "vec4_tex1d", IR_TEX, 1, 2 }, - { "vec4_texb1d", IR_TEXB, 1, 2 }, /* 1d w/ bias */ - { "vec4_texp1d", IR_TEXP, 1, 2 }, /* 1d w/ projection */ - { "vec4_tex2d", IR_TEX, 1, 2 }, - { "vec4_texb2d", IR_TEXB, 1, 2 }, /* 2d w/ bias */ - { "vec4_texp2d", IR_TEXP, 1, 2 }, /* 2d w/ projection */ - { "vec4_tex3d", IR_TEX, 1, 2 }, - { "vec4_texb3d", IR_TEXB, 1, 2 }, /* 3d w/ bias */ - { "vec4_texp3d", IR_TEXP, 1, 2 }, /* 3d w/ projection */ - { "vec4_texcube", IR_TEX, 1, 2 }, /* cubemap */ - { "vec4_tex_rect", IR_TEX, 1, 2 }, /* rectangle */ - { "vec4_texp_rect", IR_TEX, 1, 2 },/* rectangle w/ projection */ + { "vec4_tex_1d", IR_TEX, 1, 2 }, + { "vec4_tex_1d_bias", IR_TEXB, 1, 2 }, /* 1d w/ bias */ + { "vec4_tex_1d_proj", IR_TEXP, 1, 2 }, /* 1d w/ projection */ + { "vec4_tex_2d", IR_TEX, 1, 2 }, + { "vec4_tex_2d_bias", IR_TEXB, 1, 2 }, /* 2d w/ bias */ + { "vec4_tex_2d_proj", IR_TEXP, 1, 2 }, /* 2d w/ projection */ + { "vec4_tex_3d", IR_TEX, 1, 2 }, + { "vec4_tex_3d_bias", IR_TEXB, 1, 2 }, /* 3d w/ bias */ + { "vec4_tex_3d_proj", IR_TEXP, 1, 2 }, /* 3d w/ projection */ + { "vec4_tex_cube", IR_TEX, 1, 2 }, /* cubemap */ + { "vec4_tex_rect", IR_TEX, 1, 2 }, /* rectangle */ + { "vec4_tex_rect_bias", IR_TEX, 1, 2 }, /* rectangle w/ projection */ + + /* texture / sampler but with shadow comparison */ + { "vec4_tex_1d_shadow", IR_TEX_SH, 1, 2 }, + { "vec4_tex_1d_bias_shadow", IR_TEXB_SH, 1, 2 }, + { "vec4_tex_1d_proj_shadow", IR_TEXP_SH, 1, 2 }, + { "vec4_tex_2d_shadow", IR_TEX_SH, 1, 2 }, + { "vec4_tex_2d_bias_shadow", IR_TEXB_SH, 1, 2 }, + { "vec4_tex_2d_proj_shadow", IR_TEXP_SH, 1, 2 }, + { "vec4_tex_rect_shadow", IR_TEX_SH, 1, 2 }, + { "vec4_tex_rect_proj_shadow", IR_TEXP_SH, 1, 2 }, /* unary op */ { "ivec4_to_vec4", IR_I_TO_F, 1, 1 }, /* int[4] to float[4] */ @@ -666,7 +600,7 @@ new_break(slang_ir_node *loopNode) assert(loopNode); assert(loopNode->Opcode == IR_LOOP); if (n) { - /* insert this node at head of linked list */ + /* insert this node at head of linked list of cont/break instructions */ n->List = loopNode->List; loopNode->List = n; } @@ -678,14 +612,15 @@ new_break(slang_ir_node *loopNode) * Make new IR_BREAK_IF_TRUE. */ static slang_ir_node * -new_break_if_true(slang_ir_node *loopNode, slang_ir_node *cond) +new_break_if_true(slang_assemble_ctx *A, slang_ir_node *cond) { + slang_ir_node *loopNode = current_loop_ir(A); slang_ir_node *n; assert(loopNode); assert(loopNode->Opcode == IR_LOOP); n = new_node1(IR_BREAK_IF_TRUE, cond); if (n) { - /* insert this node at head of linked list */ + /* insert this node at head of linked list of cont/break instructions */ n->List = loopNode->List; loopNode->List = n; } @@ -697,14 +632,16 @@ new_break_if_true(slang_ir_node *loopNode, slang_ir_node *cond) * Make new IR_CONT_IF_TRUE node. */ static slang_ir_node * -new_cont_if_true(slang_ir_node *loopNode, slang_ir_node *cond) +new_cont_if_true(slang_assemble_ctx *A, slang_ir_node *cond) { + slang_ir_node *loopNode = current_loop_ir(A); slang_ir_node *n; assert(loopNode); assert(loopNode->Opcode == IR_LOOP); n = new_node1(IR_CONT_IF_TRUE, cond); if (n) { - /* insert this node at head of linked list */ + n->Parent = loopNode; /* pointer to containing loop */ + /* insert this node at head of linked list of cont/break instructions */ n->List = loopNode->List; loopNode->List = n; } @@ -735,7 +672,14 @@ new_var(slang_assemble_ctx *A, slang_variable *var) { slang_ir_node *n = new_node0(IR_VAR); if (n) { - _slang_attach_storage(n, var); + ASSERT(var); + ASSERT(var->store); + ASSERT(!n->Store); + ASSERT(!n->Var); + + /* Set IR node's Var and Store pointers */ + n->Var = var; + n->Store = var->store; } return n; } @@ -772,6 +716,7 @@ _slang_is_noop(const slang_operation *oper) /** * Recursively search tree for a node of the given type. */ +#if 0 static slang_operation * _slang_find_node_type(slang_operation *oper, slang_operation_type type) { @@ -785,13 +730,14 @@ _slang_find_node_type(slang_operation *oper, slang_operation_type type) } return NULL; } +#endif /** * Count the number of operations of the given time rooted at 'oper'. */ static GLuint -_slang_count_node_type(slang_operation *oper, slang_operation_type type) +_slang_count_node_type(const slang_operation *oper, slang_operation_type type) { GLuint i, count = 0; if (oper->type == type) { @@ -845,6 +791,37 @@ _slang_is_tail_return(const slang_operation *oper) } +/** + * Generate a variable declaration opeartion. + * I.e.: generate AST code for "bool flag = false;" + */ +static void +slang_generate_declaration(slang_assemble_ctx *A, + slang_variable_scope *scope, + slang_operation *decl, + slang_type_specifier_type type, + const char *name, + GLint initValue) +{ + slang_variable *var; + + assert(type == SLANG_SPEC_BOOL || + type == SLANG_SPEC_INT); + + decl->type = SLANG_OPER_VARIABLE_DECL; + + var = slang_variable_scope_grow(scope); + + slang_fully_specified_type_construct(&var->type); + + var->type.specifier.type = type; + var->a_name = slang_atom_pool_atom(A->atoms, name); + decl->a_id = var->a_name; + var->initializer = slang_operation_new(1); + slang_operation_literal_bool(var->initializer, initValue); +} + + static void slang_resolve_variable(slang_operation *oper) { @@ -855,6 +832,159 @@ slang_resolve_variable(slang_operation *oper) /** + * Rewrite AST code for "return expression;". + * + * We return values from functions by assinging the returned value to + * the hidden __retVal variable which is an extra 'out' parameter we add + * to the function signature. + * This code basically converts "return expr;" into "__retVal = expr; return;" + * + * \return the new AST code. + */ +static slang_operation * +gen_return_with_expression(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_operation *blockOper, *assignOper; + + assert(oper->type == SLANG_OPER_RETURN); + + if (A->CurFunction->header.type.specifier.type == SLANG_SPEC_VOID) { + slang_info_log_error(A->log, "illegal return expression"); + return NULL; + } + + blockOper = slang_operation_new(1); + blockOper->type = SLANG_OPER_BLOCK_NO_NEW_SCOPE; + blockOper->locals->outer_scope = oper->locals->outer_scope; + slang_operation_add_children(blockOper, 2); + + if (A->UseReturnFlag) { + /* Emit: + * { + * if (__notRetFlag) + * __retVal = expr; + * __notRetFlag = 0; + * } + */ + { + slang_operation *ifOper = slang_oper_child(blockOper, 0); + ifOper->type = SLANG_OPER_IF; + slang_operation_add_children(ifOper, 3); + { + slang_operation *cond = slang_oper_child(ifOper, 0); + cond->type = SLANG_OPER_IDENTIFIER; + cond->a_id = slang_atom_pool_atom(A->atoms, "__notRetFlag"); + } + { + slang_operation *elseOper = slang_oper_child(ifOper, 2); + elseOper->type = SLANG_OPER_VOID; + } + assignOper = slang_oper_child(ifOper, 1); + } + { + slang_operation *setOper = slang_oper_child(blockOper, 1); + setOper->type = SLANG_OPER_ASSIGN; + slang_operation_add_children(setOper, 2); + { + slang_operation *lhs = slang_oper_child(setOper, 0); + lhs->type = SLANG_OPER_IDENTIFIER; + lhs->a_id = slang_atom_pool_atom(A->atoms, "__notRetFlag"); + } + { + slang_operation *rhs = slang_oper_child(setOper, 1); + slang_operation_literal_bool(rhs, GL_FALSE); + } + } + } + else { + /* Emit: + * { + * __retVal = expr; + * return_inlined; + * } + */ + assignOper = slang_oper_child(blockOper, 0); + { + slang_operation *returnOper = slang_oper_child(blockOper, 1); + returnOper->type = SLANG_OPER_RETURN_INLINED; + assert(returnOper->num_children == 0); + } + } + + /* __retVal = expression; */ + assignOper->type = SLANG_OPER_ASSIGN; + slang_operation_add_children(assignOper, 2); + { + slang_operation *lhs = slang_oper_child(assignOper, 0); + lhs->type = SLANG_OPER_IDENTIFIER; + lhs->a_id = slang_atom_pool_atom(A->atoms, "__retVal"); + } + { + slang_operation *rhs = slang_oper_child(assignOper, 1); + slang_operation_copy(rhs, &oper->children[0]); + } + + ///blockOper->locals->outer_scope = oper->locals->outer_scope; + + /*slang_print_tree(blockOper, 0);*/ + + return blockOper; +} + + +/** + * Rewrite AST code for "return;" (no expression). + */ +static slang_operation * +gen_return_without_expression(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_operation *newRet; + + assert(oper->type == SLANG_OPER_RETURN); + + if (A->CurFunction->header.type.specifier.type != SLANG_SPEC_VOID) { + slang_info_log_error(A->log, "return statement requires an expression"); + return NULL; + } + + if (A->UseReturnFlag) { + /* Emit: + * __notRetFlag = 0; + */ + { + newRet = slang_operation_new(1); + newRet->locals->outer_scope = oper->locals->outer_scope; + newRet->type = SLANG_OPER_ASSIGN; + slang_operation_add_children(newRet, 2); + { + slang_operation *lhs = slang_oper_child(newRet, 0); + lhs->type = SLANG_OPER_IDENTIFIER; + lhs->a_id = slang_atom_pool_atom(A->atoms, "__notRetFlag"); + } + { + slang_operation *rhs = slang_oper_child(newRet, 1); + slang_operation_literal_bool(rhs, GL_FALSE); + } + } + } + else { + /* Emit: + * return_inlined; + */ + newRet = slang_operation_new(1); + newRet->locals->outer_scope = oper->locals->outer_scope; + newRet->type = SLANG_OPER_RETURN_INLINED; + } + + /*slang_print_tree(newRet, 0);*/ + + return newRet; +} + + + + +/** * Replace particular variables (SLANG_OPER_IDENTIFIER) with new expressions. */ static void @@ -889,7 +1019,8 @@ slang_substitute(slang_assemble_ctx *A, slang_operation *oper, GLuint i; v = _slang_variable_locate(oper->locals, id, GL_TRUE); if (!v) { - _mesa_problem(NULL, "var %s not found!\n", (char *) oper->a_id); + if (_mesa_strcmp((char *) oper->a_id, "__notRetFlag")) + _mesa_problem(NULL, "var %s not found!\n", (char *) oper->a_id); return; } @@ -919,62 +1050,24 @@ slang_substitute(slang_assemble_ctx *A, slang_operation *oper, break; case SLANG_OPER_RETURN: - /* do return replacement here too */ - assert(oper->num_children == 0 || oper->num_children == 1); - if (oper->num_children == 1 && !_slang_is_noop(&oper->children[0])) { - /* replace: - * return expr; - * with: - * __retVal = expr; - * return; - * then do substitutions on the assignment. - */ - slang_operation *blockOper, *assignOper, *returnOper; + { + slang_operation *newReturn; + /* generate new 'return' code' */ + if (slang_oper_child(oper, 0)->type == SLANG_OPER_VOID) + newReturn = gen_return_without_expression(A, oper); + else + newReturn = gen_return_with_expression(A, oper); - /* check if function actually has a return type */ - assert(A->CurFunction); - if (A->CurFunction->header.type.specifier.type == SLANG_SPEC_VOID) { - slang_info_log_error(A->log, "illegal return expression"); + if (!newReturn) return; - } - - blockOper = slang_operation_new(1); - blockOper->type = SLANG_OPER_BLOCK_NO_NEW_SCOPE; - blockOper->num_children = 2; - blockOper->locals->outer_scope = oper->locals->outer_scope; - blockOper->children = slang_operation_new(2); - assignOper = blockOper->children + 0; - returnOper = blockOper->children + 1; - - assignOper->type = SLANG_OPER_ASSIGN; - assignOper->num_children = 2; - assignOper->locals->outer_scope = blockOper->locals; - assignOper->children = slang_operation_new(2); - assignOper->children[0].type = SLANG_OPER_IDENTIFIER; - assignOper->children[0].a_id = slang_atom_pool_atom(A->atoms, "__retVal"); - assignOper->children[0].locals->outer_scope = assignOper->locals; - - slang_operation_copy(&assignOper->children[1], - &oper->children[0]); - - returnOper->type = SLANG_OPER_RETURN; /* return w/ no value */ - assert(returnOper->num_children == 0); - /* do substitutions on the "__retVal = expr" sub-tree */ - slang_substitute(A, assignOper, + /* do substitutions on the new 'return' code */ + slang_substitute(A, newReturn, substCount, substOld, substNew, GL_FALSE); - /* install new code */ - slang_operation_copy(oper, blockOper); - slang_operation_destruct(blockOper); - } - else { - /* check if return value was expected */ - assert(A->CurFunction); - if (A->CurFunction->header.type.specifier.type != SLANG_SPEC_VOID) { - slang_info_log_error(A->log, "return statement requires an expression"); - return; - } + /* install new 'return' code */ + slang_operation_copy(oper, newReturn); + slang_operation_destruct(newReturn); } break; @@ -1222,8 +1315,9 @@ slang_inline_function_call(slang_assemble_ctx * A, slang_function *fun, } else if (p->type.qualifier == SLANG_QUAL_CONST) { /* a constant input param */ - if (args[i].type == SLANG_OPER_IDENTIFIER || - args[i].type == SLANG_OPER_LITERAL_FLOAT) { + if (args[i].type == SLANG_OPER_IDENTIFIER || + args[i].type == SLANG_OPER_LITERAL_FLOAT || + args[i].type == SLANG_OPER_SUBSCRIPT) { /* replace all occurances of this parameter variable with the * actual argument variable or a literal. */ @@ -1369,12 +1463,74 @@ slang_inline_function_call(slang_assemble_ctx * A, slang_function *fun, } +/** + * Insert declaration for "bool __notRetFlag" in given block operation. + * This is used when we can't emit "early" return statements in subroutines. + */ +static void +declare_return_flag(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_operation *decl; + + assert(oper->type == SLANG_OPER_BLOCK_NEW_SCOPE || + oper->type == SLANG_OPER_SEQUENCE); + + decl = slang_operation_insert_child(oper, 1); + + slang_generate_declaration(A, oper->locals, decl, + SLANG_SPEC_BOOL, "__notRetFlag", GL_TRUE); + + /*slang_print_tree(oper, 0);*/ +} + + +/** + * Recursively replace instances of the old node type with the new type. + */ +static void +replace_node_type(slang_operation *oper, slang_operation_type oldType, + slang_operation_type newType) +{ + GLuint i; + + if (oper->type == oldType) + oper->type = newType; + + for (i = 0; i < slang_oper_num_children(oper); i++) { + replace_node_type(slang_oper_child(oper, i), oldType, newType); + } +} + + + +/** + * Test if the given function body has an "early return". That is, there's + * a 'return' statement that's not the very last instruction in the body. + */ +static GLboolean +has_early_return(const slang_operation *funcBody) +{ + GLuint retCount = _slang_count_node_type(funcBody, SLANG_OPER_RETURN); + if (retCount == 0) + return GL_FALSE; + else if (retCount == 1 && _slang_is_tail_return(funcBody)) + return GL_FALSE; + else + return GL_TRUE; +} + + +/** + * Emit IR code for a function call. This does one of two things: + * 1. Inline the function's code + * 2. Create an IR for the function's body and create a real call to it. + */ static slang_ir_node * _slang_gen_function_call(slang_assemble_ctx *A, slang_function *fun, slang_operation *oper, slang_operation *dest) { slang_ir_node *n; - slang_operation *inlined; + slang_operation *instance; slang_label *prevFuncEndLabel; char name[200]; @@ -1383,9 +1539,14 @@ _slang_gen_function_call(slang_assemble_ctx *A, slang_function *fun, A->curFuncEndLabel = _slang_label_new(name); assert(A->curFuncEndLabel); + /* + * 'instance' is basically a copy of the function's body with various + * transformations. + */ + if (slang_is_asm_function(fun) && !dest) { /* assemble assembly function - tree style */ - inlined = slang_inline_asm_function(A, fun, oper); + instance = slang_inline_asm_function(A, fun, oper); } else { /* non-assembly function */ @@ -1394,65 +1555,82 @@ _slang_gen_function_call(slang_assemble_ctx *A, slang_function *fun, * 1. insert the inline code * 2. Generate a call to the "inline" code as a subroutine */ + const GLboolean earlyReturn = has_early_return(fun->body); + if (earlyReturn && !A->EmitContReturn) { + A->UseReturnFlag = GL_TRUE; + } - slang_operation *ret = NULL; - - inlined = slang_inline_function_call(A, fun, oper, dest); - if (!inlined) + instance = slang_inline_function_call(A, fun, oper, dest); + if (!instance) return NULL; - ret = _slang_find_node_type(inlined, SLANG_OPER_RETURN); - if (ret) { - /* check if this is a "tail" return */ - if (_slang_count_node_type(inlined, SLANG_OPER_RETURN) == 1 && - _slang_is_tail_return(inlined)) { - /* The only RETURN is the last stmt in the function, no-op it - * and inline the function body. + if (earlyReturn) { + /* The function we're calling has one or more 'return' statements + * that prevent us from inlining the function's code. + * + * In this case, change the function's body type from + * SLANG_OPER_BLOCK_NEW_SCOPE to SLANG_OPER_NON_INLINED_CALL. + * During code emit this will result in a true subroutine call. + * + * Also, convert SLANG_OPER_RETURN_INLINED nodes to SLANG_OPER_RETURN. + */ + slang_operation *callOper; + + assert(instance->type == SLANG_OPER_BLOCK_NEW_SCOPE || + instance->type == SLANG_OPER_SEQUENCE); + + if (_slang_function_has_return_value(fun) && !dest) { + assert(instance->children[0].type == SLANG_OPER_VARIABLE_DECL); + assert(instance->children[2].type == SLANG_OPER_IDENTIFIER); + callOper = &instance->children[1]; + } + else { + callOper = instance; + } + + if (A->UseReturnFlag) { + /* Early returns not supported. Create a _returnFlag variable + * that's set upon 'return' and tested elsewhere to no-op any + * remaining instructions in the subroutine. */ - ret->type = SLANG_OPER_NONE; + assert(callOper->type == SLANG_OPER_BLOCK_NEW_SCOPE || + callOper->type == SLANG_OPER_SEQUENCE); + declare_return_flag(A, callOper); } else { - slang_operation *callOper; - /* The function we're calling has one or more 'return' statements. - * So, we can't truly inline this function because we need to - * implement 'return' with RET (and CAL). - * Nevertheless, we performed "inlining" to make a new instance - * of the function body to deal with static register allocation. - * - * XXX check if there's one 'return' and if it's the very last - * statement in the function - we can optimize that case. + /* We can emit real 'return' statements. If we generated any + * 'inline return' statements during function instantiation, + * change them back to regular 'return' statements. */ - assert(inlined->type == SLANG_OPER_BLOCK_NEW_SCOPE || - inlined->type == SLANG_OPER_SEQUENCE); - - if (_slang_function_has_return_value(fun) && !dest) { - assert(inlined->children[0].type == SLANG_OPER_VARIABLE_DECL); - assert(inlined->children[2].type == SLANG_OPER_IDENTIFIER); - callOper = &inlined->children[1]; - } - else { - callOper = inlined; - } - callOper->type = SLANG_OPER_NON_INLINED_CALL; - callOper->fun = fun; - callOper->label = _slang_label_new_unique((char*) fun->header.a_name); + replace_node_type(instance, SLANG_OPER_RETURN_INLINED, + SLANG_OPER_RETURN); } + + callOper->type = SLANG_OPER_NON_INLINED_CALL; + callOper->fun = fun; + callOper->label = _slang_label_new_unique((char*) fun->header.a_name); + } + else { + /* If there are any 'return' statements remaining, they're at the + * very end of the function and can effectively become no-ops. + */ + replace_node_type(instance, SLANG_OPER_RETURN_INLINED, + SLANG_OPER_VOID); } } - if (!inlined) + if (!instance) return NULL; - /* Replace the function call with the inlined block (or new CALL stmt) */ + /* Replace the function call with the instance block (or new CALL stmt) */ slang_operation_destruct(oper); - *oper = *inlined; - _slang_free(inlined); + *oper = *instance; + _slang_free(instance); #if 0 - assert(inlined->locals); - printf("*** Inlined code for call to %s:\n", - (char*) fun->header.a_name); + assert(instance->locals); + printf("*** Inlined code for call to %s:\n", (char*) fun->header.a_name); slang_print_tree(oper, 10); printf("\n"); #endif @@ -1462,6 +1640,14 @@ _slang_gen_function_call(slang_assemble_ctx *A, slang_function *fun, /*_slang_label_delete(A->curFuncEndLabel);*/ A->curFuncEndLabel = prevFuncEndLabel; + if (A->pragmas->Debug) { + char s[1000]; + _mesa_snprintf(s, sizeof(s), "Call/inline %s()", (char *) fun->header.a_name); + n->Comment = _slang_strdup(s); + } + + A->UseReturnFlag = GL_FALSE; + return n; } @@ -2216,12 +2402,13 @@ _slang_gen_function_call_name(slang_assemble_ctx *A, const char *name, name); return NULL; } + if (!fun->body) { - slang_info_log_error(A->log, - "Function '%s' prototyped but not defined. " - "Separate compilation units not supported.", - name); - return NULL; + /* The function body may be in another compilation unit. + * We'll try concatenating the shaders and recompile at link time. + */ + A->UnresolvedRefs = GL_TRUE; + return new_node1(IR_NOP, NULL); } /* type checking to be sure function's return type matches 'dest' type */ @@ -2353,19 +2540,252 @@ _slang_is_boolean(slang_assemble_ctx *A, slang_operation *oper) /** + * Check if a loop contains a 'continue' statement. + * Stop looking if we find a nested loop. + */ +static GLboolean +_slang_loop_contains_continue(const slang_operation *oper) +{ + switch (oper->type) { + case SLANG_OPER_CONTINUE: + return GL_TRUE; + case SLANG_OPER_FOR: + case SLANG_OPER_DO: + case SLANG_OPER_WHILE: + /* stop upon finding a nested loop */ + return GL_FALSE; + default: + /* recurse */ + { + GLuint i; + for (i = 0; i < oper->num_children; i++) { + const slang_operation *child = slang_oper_child_const(oper, i); + if (_slang_loop_contains_continue(child)) + return GL_TRUE; + } + } + return GL_FALSE; + } +} + + +/** + * Check if a loop contains a 'continue' or 'break' statement. + * Stop looking if we find a nested loop. + */ +static GLboolean +_slang_loop_contains_continue_or_break(const slang_operation *oper) +{ + switch (oper->type) { + case SLANG_OPER_CONTINUE: + case SLANG_OPER_BREAK: + return GL_TRUE; + case SLANG_OPER_FOR: + case SLANG_OPER_DO: + case SLANG_OPER_WHILE: + /* stop upon finding a nested loop */ + return GL_FALSE; + default: + /* recurse */ + { + GLuint i; + for (i = 0; i < oper->num_children; i++) { + const slang_operation *child = slang_oper_child_const(oper, i); + if (_slang_loop_contains_continue_or_break(child)) + return GL_TRUE; + } + } + return GL_FALSE; + } +} + + +/** + * Replace 'break' and 'continue' statements inside a do and while loops. + * This is a recursive helper function used by + * _slang_gen_do/while_without_continue(). + */ +static void +replace_break_and_cont(slang_assemble_ctx *A, slang_operation *oper) +{ + switch (oper->type) { + case SLANG_OPER_BREAK: + /* replace 'break' with "_notBreakFlag = false; break" */ + { + slang_operation *block = oper; + block->type = SLANG_OPER_BLOCK_NEW_SCOPE; + slang_operation_add_children(block, 2); + { + slang_operation *assign = slang_oper_child(block, 0); + assign->type = SLANG_OPER_ASSIGN; + slang_operation_add_children(assign, 2); + { + slang_operation *lhs = slang_oper_child(assign, 0); + slang_operation_identifier(lhs, A, "_notBreakFlag"); + } + { + slang_operation *rhs = slang_oper_child(assign, 1); + slang_operation_literal_bool(rhs, GL_FALSE); + } + } + { + slang_operation *brk = slang_oper_child(block, 1); + brk->type = SLANG_OPER_BREAK; + assert(!brk->children); + } + } + break; + case SLANG_OPER_CONTINUE: + /* convert continue into a break */ + oper->type = SLANG_OPER_BREAK; + break; + case SLANG_OPER_FOR: + case SLANG_OPER_DO: + case SLANG_OPER_WHILE: + /* stop upon finding a nested loop */ + break; + default: + /* recurse */ + { + GLuint i; + for (i = 0; i < oper->num_children; i++) { + replace_break_and_cont(A, slang_oper_child(oper, i)); + } + } + } +} + + +/** + * Transform a while-loop so that continue statements are converted to breaks. + * Then do normal IR code generation. + * + * Before: + * + * while (LOOPCOND) { + * A; + * if (IFCOND) + * continue; + * B; + * break; + * C; + * } + * + * After: + * + * { + * bool _notBreakFlag = 1; + * while (_notBreakFlag && LOOPCOND) { + * do { + * A; + * if (IFCOND) { + * break; // was continue + * } + * B; + * _notBreakFlag = 0; // was + * break; // break + * C; + * } while (0) + * } + * } + */ +static slang_ir_node * +_slang_gen_while_without_continue(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_operation *top; + slang_operation *innerBody; + + assert(oper->type == SLANG_OPER_WHILE); + + top = slang_operation_new(1); + top->type = SLANG_OPER_BLOCK_NEW_SCOPE; + top->locals->outer_scope = oper->locals->outer_scope; + slang_operation_add_children(top, 2); + + /* declare: bool _notBreakFlag = true */ + { + slang_operation *condDecl = slang_oper_child(top, 0); + slang_generate_declaration(A, top->locals, condDecl, + SLANG_SPEC_BOOL, "_notBreakFlag", GL_TRUE); + } + + /* build outer while-loop: while (_notBreakFlag && LOOPCOND) { ... } */ + { + slang_operation *outerWhile = slang_oper_child(top, 1); + outerWhile->type = SLANG_OPER_WHILE; + slang_operation_add_children(outerWhile, 2); + + /* _notBreakFlag && LOOPCOND */ + { + slang_operation *cond = slang_oper_child(outerWhile, 0); + cond->type = SLANG_OPER_LOGICALAND; + slang_operation_add_children(cond, 2); + { + slang_operation *notBreak = slang_oper_child(cond, 0); + slang_operation_identifier(notBreak, A, "_notBreakFlag"); + } + { + slang_operation *origCond = slang_oper_child(cond, 1); + slang_operation_copy(origCond, slang_oper_child(oper, 0)); + } + } + + /* inner loop */ + { + slang_operation *innerDo = slang_oper_child(outerWhile, 1); + innerDo->type = SLANG_OPER_DO; + slang_operation_add_children(innerDo, 2); + + /* copy original do-loop body into inner do-loop's body */ + innerBody = slang_oper_child(innerDo, 0); + slang_operation_copy(innerBody, slang_oper_child(oper, 1)); + innerBody->locals->outer_scope = innerDo->locals; + + /* inner do-loop's condition is constant/false */ + { + slang_operation *constFalse = slang_oper_child(innerDo, 1); + slang_operation_literal_bool(constFalse, GL_FALSE); + } + } + } + + /* Finally, in innerBody, + * replace "break" with "_notBreakFlag = 0; break" + * replace "continue" with "break" + */ + replace_break_and_cont(A, innerBody); + + /*slang_print_tree(top, 0);*/ + + return _slang_gen_operation(A, top); + + return NULL; +} + + +/** * Generate loop code using high-level IR_LOOP instruction */ static slang_ir_node * -_slang_gen_while(slang_assemble_ctx * A, const slang_operation *oper) +_slang_gen_while(slang_assemble_ctx * A, slang_operation *oper) { /* * LOOP: * BREAK if !expr (child[0]) * body code (child[1]) */ - slang_ir_node *prevLoop, *loop, *breakIf, *body; + slang_ir_node *loop, *breakIf, *body; GLboolean isConst, constTrue; + if (!A->EmitContReturn) { + /* We don't want to emit CONT instructions. If this while-loop has + * a continue, translate it away. + */ + if (_slang_loop_contains_continue(slang_oper_child(oper, 1))) { + return _slang_gen_while_without_continue(A, oper); + } + } + /* type-check expression */ if (!_slang_is_boolean(A, &oper->children[0])) { slang_info_log_error(A->log, "scalar/boolean expression expected for 'while'"); @@ -2380,11 +2800,11 @@ _slang_gen_while(slang_assemble_ctx * A, const slang_operation *oper) return new_node0(IR_NOP); } + /* Begin new loop */ loop = new_loop(NULL); - /* save old, push new loop */ - prevLoop = A->CurLoop; - A->CurLoop = loop; + /* save loop state */ + push_loop(A, oper, loop); if (isConst && constTrue) { /* while(nonzero constant), no conditional break */ @@ -2393,7 +2813,7 @@ _slang_gen_while(slang_assemble_ctx * A, const slang_operation *oper) else { slang_ir_node *cond = new_cond(new_not(_slang_gen_operation(A, &oper->children[0]))); - breakIf = new_break_if_true(A->CurLoop, cond); + breakIf = new_break_if_true(A, cond); } body = _slang_gen_operation(A, &oper->children[1]); loop->Children[0] = new_seq(breakIf, body); @@ -2402,23 +2822,128 @@ _slang_gen_while(slang_assemble_ctx * A, const slang_operation *oper) /* loop->List is head of linked list of break/continue nodes */ if (!loop->List && isConst && constTrue) { /* infinite loop detected */ - A->CurLoop = prevLoop; /* clean-up */ + pop_loop(A); slang_info_log_error(A->log, "Infinite loop detected!"); return NULL; } - /* pop loop, restore prev */ - A->CurLoop = prevLoop; + /* restore loop state */ + pop_loop(A); return loop; } /** + * Transform a do-while-loop so that continue statements are converted to breaks. + * Then do normal IR code generation. + * + * Before: + * + * do { + * A; + * if (IFCOND) + * continue; + * B; + * break; + * C; + * } while (LOOPCOND); + * + * After: + * + * { + * bool _notBreakFlag = 1; + * do { + * do { + * A; + * if (IFCOND) { + * break; // was continue + * } + * B; + * _notBreakFlag = 0; // was + * break; // break + * C; + * } while (0) + * } while (_notBreakFlag && LOOPCOND); + * } + */ +static slang_ir_node * +_slang_gen_do_without_continue(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_operation *top; + slang_operation *innerBody; + + assert(oper->type == SLANG_OPER_DO); + + top = slang_operation_new(1); + top->type = SLANG_OPER_BLOCK_NEW_SCOPE; + top->locals->outer_scope = oper->locals->outer_scope; + slang_operation_add_children(top, 2); + + /* declare: bool _notBreakFlag = true */ + { + slang_operation *condDecl = slang_oper_child(top, 0); + slang_generate_declaration(A, top->locals, condDecl, + SLANG_SPEC_BOOL, "_notBreakFlag", GL_TRUE); + } + + /* build outer do-loop: do { ... } while (_notBreakFlag && LOOPCOND) */ + { + slang_operation *outerDo = slang_oper_child(top, 1); + outerDo->type = SLANG_OPER_DO; + slang_operation_add_children(outerDo, 2); + + /* inner do-loop */ + { + slang_operation *innerDo = slang_oper_child(outerDo, 0); + innerDo->type = SLANG_OPER_DO; + slang_operation_add_children(innerDo, 2); + + /* copy original do-loop body into inner do-loop's body */ + innerBody = slang_oper_child(innerDo, 0); + slang_operation_copy(innerBody, slang_oper_child(oper, 0)); + innerBody->locals->outer_scope = innerDo->locals; + + /* inner do-loop's condition is constant/false */ + { + slang_operation *constFalse = slang_oper_child(innerDo, 1); + slang_operation_literal_bool(constFalse, GL_FALSE); + } + } + + /* _notBreakFlag && LOOPCOND */ + { + slang_operation *cond = slang_oper_child(outerDo, 1); + cond->type = SLANG_OPER_LOGICALAND; + slang_operation_add_children(cond, 2); + { + slang_operation *notBreak = slang_oper_child(cond, 0); + slang_operation_identifier(notBreak, A, "_notBreakFlag"); + } + { + slang_operation *origCond = slang_oper_child(cond, 1); + slang_operation_copy(origCond, slang_oper_child(oper, 1)); + } + } + } + + /* Finally, in innerBody, + * replace "break" with "_notBreakFlag = 0; break" + * replace "continue" with "break" + */ + replace_break_and_cont(A, innerBody); + + /*slang_print_tree(top, 0);*/ + + return _slang_gen_operation(A, top); +} + + +/** * Generate IR tree for a do-while loop using high-level LOOP, IF instructions. */ static slang_ir_node * -_slang_gen_do(slang_assemble_ctx * A, const slang_operation *oper) +_slang_gen_do(slang_assemble_ctx * A, slang_operation *oper) { /* * LOOP: @@ -2426,9 +2951,18 @@ _slang_gen_do(slang_assemble_ctx * A, const slang_operation *oper) * tail code: * BREAK if !expr (child[1]) */ - slang_ir_node *prevLoop, *loop; + slang_ir_node *loop; GLboolean isConst, constTrue; + if (!A->EmitContReturn) { + /* We don't want to emit CONT instructions. If this do-loop has + * a continue, translate it away. + */ + if (_slang_loop_contains_continue(slang_oper_child(oper, 0))) { + return _slang_gen_do_without_continue(A, oper); + } + } + /* type-check expression */ if (!_slang_is_boolean(A, &oper->children[1])) { slang_info_log_error(A->log, "scalar/boolean expression expected for 'do/while'"); @@ -2437,9 +2971,8 @@ _slang_gen_do(slang_assemble_ctx * A, const slang_operation *oper) loop = new_loop(NULL); - /* save old, push new loop */ - prevLoop = A->CurLoop; - A->CurLoop = loop; + /* save loop state */ + push_loop(A, oper, loop); /* loop body: */ loop->Children[0] = _slang_gen_operation(A, &oper->children[0]); @@ -2453,13 +2986,13 @@ _slang_gen_do(slang_assemble_ctx * A, const slang_operation *oper) else { slang_ir_node *cond = new_cond(new_not(_slang_gen_operation(A, &oper->children[1]))); - loop->Children[1] = new_break_if_true(A->CurLoop, cond); + loop->Children[1] = new_break_if_true(A, cond); } /* XXX we should do infinite loop detection, as above */ - /* pop loop, restore prev */ - A->CurLoop = prevLoop; + /* restore loop state */ + pop_loop(A); return loop; } @@ -2501,9 +3034,14 @@ _slang_can_unroll_for_loop(slang_assemble_ctx * A, const slang_operation *oper) const char *varName; slang_atom varId; - assert(oper->type == SLANG_OPER_FOR); + if (oper->type != SLANG_OPER_FOR) + return GL_FALSE; + assert(oper->num_children == 4); + if (_slang_loop_contains_continue_or_break(slang_oper_child_const(oper, 3))) + return GL_FALSE; + /* children[0] must be either "int i=constant" or "i=constant" */ if (oper->children[0].type == SLANG_OPER_BLOCK_NO_NEW_SCOPE) { slang_variable *var; @@ -2665,6 +3203,9 @@ _slang_unroll_for_loop(slang_assemble_ctx * A, const slang_operation *oper) /* do IR codegen for body */ n = _slang_gen_operation(A, body); + if (!n) + return NULL; + root = new_seq(root, n); slang_operation_delete(body); @@ -2675,19 +3216,182 @@ _slang_unroll_for_loop(slang_assemble_ctx * A, const slang_operation *oper) /** + * Replace 'continue' statement with 'break' inside a for-loop. + * This is a recursive helper function used by _slang_gen_for_without_continue(). + */ +static void +replace_continue_with_break(slang_assemble_ctx *A, slang_operation *oper) +{ + switch (oper->type) { + case SLANG_OPER_CONTINUE: + oper->type = SLANG_OPER_BREAK; + break; + case SLANG_OPER_FOR: + case SLANG_OPER_DO: + case SLANG_OPER_WHILE: + /* stop upon finding a nested loop */ + break; + default: + /* recurse */ + { + GLuint i; + for (i = 0; i < oper->num_children; i++) { + replace_continue_with_break(A, slang_oper_child(oper, i)); + } + } + } +} + + +/** + * Transform a for-loop so that continue statements are converted to breaks. + * Then do normal IR code generation. + * + * Before: + * + * for (INIT; LOOPCOND; INCR) { + * A; + * if (IFCOND) { + * continue; + * } + * B; + * } + * + * After: + * + * { + * bool _condFlag = 1; + * for (INIT; _condFlag; ) { + * for ( ; _condFlag = LOOPCOND; INCR) { + * A; + * if (IFCOND) { + * break; + * } + * B; + * } + * if (_condFlag) + * INCR; + * } + * } + */ +static slang_ir_node * +_slang_gen_for_without_continue(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_operation *top; + slang_operation *outerFor, *innerFor, *init, *cond, *incr; + slang_operation *lhs, *rhs; + + assert(oper->type == SLANG_OPER_FOR); + + top = slang_operation_new(1); + top->type = SLANG_OPER_BLOCK_NEW_SCOPE; + top->locals->outer_scope = oper->locals->outer_scope; + slang_operation_add_children(top, 2); + + /* declare: bool _condFlag = true */ + { + slang_operation *condDecl = slang_oper_child(top, 0); + slang_generate_declaration(A, top->locals, condDecl, + SLANG_SPEC_BOOL, "_condFlag", GL_TRUE); + } + + /* build outer loop: for (INIT; _condFlag; ) { */ + outerFor = slang_oper_child(top, 1); + outerFor->type = SLANG_OPER_FOR; + slang_operation_add_children(outerFor, 4); + + init = slang_oper_child(outerFor, 0); + slang_operation_copy(init, slang_oper_child(oper, 0)); + + cond = slang_oper_child(outerFor, 1); + cond->type = SLANG_OPER_IDENTIFIER; + cond->a_id = slang_atom_pool_atom(A->atoms, "_condFlag"); + + incr = slang_oper_child(outerFor, 2); + incr->type = SLANG_OPER_VOID; + + /* body of the outer loop */ + { + slang_operation *block = slang_oper_child(outerFor, 3); + + slang_operation_add_children(block, 2); + block->type = SLANG_OPER_BLOCK_NO_NEW_SCOPE; + + /* build inner loop: for ( ; _condFlag = LOOPCOND; INCR) { */ + { + innerFor = slang_oper_child(block, 0); + + /* make copy of orig loop */ + slang_operation_copy(innerFor, oper); + assert(innerFor->type == SLANG_OPER_FOR); + innerFor->locals->outer_scope = block->locals; + + init = slang_oper_child(innerFor, 0); + init->type = SLANG_OPER_VOID; /* leak? */ + + cond = slang_oper_child(innerFor, 1); + slang_operation_destruct(cond); + cond->type = SLANG_OPER_ASSIGN; + cond->locals = _slang_variable_scope_new(innerFor->locals); + slang_operation_add_children(cond, 2); + + lhs = slang_oper_child(cond, 0); + lhs->type = SLANG_OPER_IDENTIFIER; + lhs->a_id = slang_atom_pool_atom(A->atoms, "_condFlag"); + + rhs = slang_oper_child(cond, 1); + slang_operation_copy(rhs, slang_oper_child(oper, 1)); + } + + /* if (_condFlag) INCR; */ + { + slang_operation *ifop = slang_oper_child(block, 1); + ifop->type = SLANG_OPER_IF; + slang_operation_add_children(ifop, 2); + + /* re-use cond node build above */ + slang_operation_copy(slang_oper_child(ifop, 0), cond); + + /* incr node from original for-loop operation */ + slang_operation_copy(slang_oper_child(ifop, 1), + slang_oper_child(oper, 2)); + } + + /* finally, replace "continue" with "break" in the inner for-loop */ + replace_continue_with_break(A, slang_oper_child(innerFor, 3)); + } + + return _slang_gen_operation(A, top); +} + + + +/** * Generate IR for a for-loop. Unrolling will be done when possible. */ static slang_ir_node * -_slang_gen_for(slang_assemble_ctx * A, const slang_operation *oper) +_slang_gen_for(slang_assemble_ctx * A, slang_operation *oper) { - GLboolean unroll = _slang_can_unroll_for_loop(A, oper); + GLboolean unroll; + if (!A->EmitContReturn) { + /* We don't want to emit CONT instructions. If this for-loop has + * a continue, translate it away. + */ + if (_slang_loop_contains_continue(slang_oper_child(oper, 3))) { + return _slang_gen_for_without_continue(A, oper); + } + } + + unroll = _slang_can_unroll_for_loop(A, oper); if (unroll) { slang_ir_node *code = _slang_unroll_for_loop(A, oper); if (code) return code; } + assert(oper->type == SLANG_OPER_FOR); + /* conventional for-loop code generation */ { /* @@ -2698,24 +3402,23 @@ _slang_gen_for(slang_assemble_ctx * A, const slang_operation *oper) * tail code: * incr code (child[2]) // XXX continue here */ - slang_ir_node *prevLoop, *loop, *cond, *breakIf, *body, *init, *incr; + slang_ir_node *loop, *cond, *breakIf, *body, *init, *incr; init = _slang_gen_operation(A, &oper->children[0]); loop = new_loop(NULL); - /* save old, push new loop */ - prevLoop = A->CurLoop; - A->CurLoop = loop; + /* save loop state */ + push_loop(A, oper, loop); cond = new_cond(new_not(_slang_gen_operation(A, &oper->children[1]))); - breakIf = new_break_if_true(A->CurLoop, cond); + breakIf = new_break_if_true(A, cond); body = _slang_gen_operation(A, &oper->children[3]); incr = _slang_gen_operation(A, &oper->children[2]); loop->Children[0] = new_seq(breakIf, body); loop->Children[1] = incr; /* tail code */ - /* pop loop, restore prev */ - A->CurLoop = prevLoop; + /* restore loop state */ + pop_loop(A); return new_seq(init, loop); } @@ -2725,18 +3428,22 @@ _slang_gen_for(slang_assemble_ctx * A, const slang_operation *oper) static slang_ir_node * _slang_gen_continue(slang_assemble_ctx * A, const slang_operation *oper) { - slang_ir_node *n, *loopNode; + slang_ir_node *n, *cont, *incr = NULL, *loopNode; + assert(oper->type == SLANG_OPER_CONTINUE); - loopNode = A->CurLoop; + loopNode = current_loop_ir(A); assert(loopNode); assert(loopNode->Opcode == IR_LOOP); - n = new_node0(IR_CONT); - if (n) { - n->Parent = loopNode; - /* insert this node at head of linked list */ - n->List = loopNode->List; - loopNode->List = n; + + cont = new_node0(IR_CONT); + if (cont) { + cont->Parent = loopNode; + /* insert this node at head of linked list of cont/break instructions */ + cont->List = loopNode->List; + loopNode->List = cont; } + + n = new_seq(incr, cont); return n; } @@ -2806,13 +3513,15 @@ _slang_gen_if(slang_assemble_ctx * A, const slang_operation *oper) if (is_operation_type(&oper->children[1], SLANG_OPER_BREAK) && !haveElseClause) { /* Special case: generate a conditional break */ - ifBody = new_break_if_true(A->CurLoop, cond); + ifBody = new_break_if_true(A, cond); return ifBody; } else if (is_operation_type(&oper->children[1], SLANG_OPER_CONTINUE) - && !haveElseClause) { - /* Special case: generate a conditional break */ - ifBody = new_cont_if_true(A->CurLoop, cond); + && !haveElseClause + && current_loop_oper(A) + && current_loop_oper(A)->type != SLANG_OPER_FOR) { + /* Special case: generate a conditional continue */ + ifBody = new_cont_if_true(A, cond); return ifBody; } else { @@ -2988,7 +3697,7 @@ _slang_gen_var_decl(slang_assemble_ctx *A, slang_variable *var, slang_ir_node *varDecl, *n; slang_ir_storage *store; GLint arrayLen, size, totalSize; /* if array then totalSize > size */ - enum register_file file; + gl_register_file file; /*assert(!var->declared);*/ var->declared = GL_TRUE; @@ -3004,7 +3713,7 @@ _slang_gen_var_decl(slang_assemble_ctx *A, slang_variable *var, file = PROGRAM_TEMPORARY; } - totalSize = size = _slang_sizeof_type_specifier(&var->type.specifier); + size = _slang_sizeof_type_specifier(&var->type.specifier); if (size <= 0) { slang_info_log_error(A->log, "invalid declaration for '%s'", varName); return NULL; @@ -3018,22 +3727,23 @@ _slang_gen_var_decl(slang_assemble_ctx *A, slang_variable *var, if (!varDecl) return NULL; - _slang_attach_storage(varDecl, var); /* undefined storage at first */ - assert(var->store); - assert(varDecl->Store == var->store); - assert(varDecl->Store); - assert(varDecl->Store->Index < 0); - store = var->store; + /* Allocate slang_ir_storage for this variable if needed. + * Note that we may not actually allocate a constant or temporary register + * until later. + */ + if (!var->store) { + GLint index = -7; /* TBD / unknown */ + var->store = _slang_new_ir_storage(file, index, totalSize); + if (!var->store) + return NULL; /* out of memory */ + } - assert(store == varDecl->Store); + /* set the IR node's Var and Store pointers */ + varDecl->Var = var; + varDecl->Store = var->store; - /* Fill in storage fields which we now know. store->Index/Swizzle may be - * set for some cases below. Otherwise, store->Index/Swizzle will be set - * during code emit. - */ - store->File = file; - store->Size = totalSize; + store = var->store; /* if there's an initializer, generate IR for the expression */ if (initializer) { @@ -3222,14 +3932,11 @@ _slang_gen_logical_and(slang_assemble_ctx *A, slang_operation *oper) select = slang_operation_new(1); select->type = SLANG_OPER_SELECT; - select->num_children = 3; - select->children = slang_operation_new(3); + slang_operation_add_children(select, 3); - slang_operation_copy(&select->children[0], &oper->children[0]); - slang_operation_copy(&select->children[1], &oper->children[1]); - select->children[2].type = SLANG_OPER_LITERAL_BOOL; - ASSIGN_4V(select->children[2].literal, 0, 0, 0, 0); /* false */ - select->children[2].literal_size = 1; + slang_operation_copy(slang_oper_child(select, 0), &oper->children[0]); + slang_operation_copy(slang_oper_child(select, 1), &oper->children[1]); + slang_operation_literal_bool(slang_oper_child(select, 2), GL_FALSE); n = _slang_gen_select(A, select); return n; @@ -3248,14 +3955,11 @@ _slang_gen_logical_or(slang_assemble_ctx *A, slang_operation *oper) select = slang_operation_new(1); select->type = SLANG_OPER_SELECT; - select->num_children = 3; - select->children = slang_operation_new(3); + slang_operation_add_children(select, 3); - slang_operation_copy(&select->children[0], &oper->children[0]); - select->children[1].type = SLANG_OPER_LITERAL_BOOL; - ASSIGN_4V(select->children[1].literal, 1, 1, 1, 1); /* true */ - select->children[1].literal_size = 1; - slang_operation_copy(&select->children[2], &oper->children[1]); + slang_operation_copy(slang_oper_child(select, 0), &oper->children[0]); + slang_operation_literal_bool(slang_oper_child(select, 1), GL_TRUE); + slang_operation_copy(slang_oper_child(select, 2), &oper->children[1]); n = _slang_gen_select(A, select); return n; @@ -3268,70 +3972,8 @@ _slang_gen_logical_or(slang_assemble_ctx *A, slang_operation *oper) static slang_ir_node * _slang_gen_return(slang_assemble_ctx * A, slang_operation *oper) { - const GLboolean haveReturnValue - = (oper->num_children == 1 && oper->children[0].type != SLANG_OPER_VOID); - - /* error checking */ - assert(A->CurFunction); - if (haveReturnValue && - A->CurFunction->header.type.specifier.type == SLANG_SPEC_VOID) { - slang_info_log_error(A->log, "illegal return expression"); - return NULL; - } - else if (!haveReturnValue && - A->CurFunction->header.type.specifier.type != SLANG_SPEC_VOID) { - slang_info_log_error(A->log, "return statement requires an expression"); - return NULL; - } - - if (!haveReturnValue) { - return new_return(A->curFuncEndLabel); - } - else { - /* - * Convert from: - * return expr; - * To: - * __retVal = expr; - * return; // goto __endOfFunction - */ - slang_operation *assign; - slang_atom a_retVal; - slang_ir_node *n; - - a_retVal = slang_atom_pool_atom(A->atoms, "__retVal"); - assert(a_retVal); - -#if 1 /* DEBUG */ - { - slang_variable *v = - _slang_variable_locate(oper->locals, a_retVal, GL_TRUE); - if (!v) { - /* trying to return a value in a void-valued function */ - return NULL; - } - } -#endif - - assign = slang_operation_new(1); - assign->type = SLANG_OPER_ASSIGN; - assign->num_children = 2; - assign->children = slang_operation_new(2); - /* lhs (__retVal) */ - assign->children[0].type = SLANG_OPER_IDENTIFIER; - assign->children[0].a_id = a_retVal; - assign->children[0].locals->outer_scope = assign->locals; - /* rhs (expr) */ - /* XXX we might be able to avoid this copy someday */ - slang_operation_copy(&assign->children[1], &oper->children[0]); - - /* assemble the new code */ - n = new_seq(_slang_gen_operation(A, assign), - new_return(A->curFuncEndLabel)); - - slang_operation_delete(assign); - return n; - } + assert(oper->type == SLANG_OPER_RETURN); + return new_return(A->curFuncEndLabel); } @@ -3437,6 +4079,7 @@ _slang_gen_declaration(slang_assemble_ctx *A, slang_operation *oper) assert(oper->type == SLANG_OPER_VARIABLE_DECL); assert(oper->num_children <= 1); + /* lookup the variable by name */ var = _slang_variable_locate(oper->locals, oper->a_id, GL_TRUE); if (!var) @@ -3592,6 +4235,9 @@ root_swizzle(const slang_ir_storage *st) static slang_ir_node * _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper) { + slang_operation *pred = NULL; + slang_ir_node *n = NULL; + if (oper->children[0].type == SLANG_OPER_IDENTIFIER) { /* Check that var is writeable */ slang_variable *var @@ -3612,6 +4258,17 @@ _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper) (char *) oper->children[0].a_id); return NULL; } + + /* check if we need to predicate this assignment based on __notRetFlag */ + if ((var->is_global || + var->type.qualifier == SLANG_QUAL_OUT || + var->type.qualifier == SLANG_QUAL_INOUT) && A->UseReturnFlag) { + /* create predicate, used below */ + pred = slang_operation_new(1); + pred->type = SLANG_OPER_IDENTIFIER; + pred->a_id = slang_atom_pool_atom(A->atoms, "__notRetFlag"); + pred->locals->outer_scope = oper->locals->outer_scope; + } } if (oper->children[0].type == SLANG_OPER_IDENTIFIER && @@ -3623,14 +4280,12 @@ _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper) * cases such as "v.x = f();" - would help with typical vertex * transformation. */ - slang_ir_node *n; n = _slang_gen_function_call_name(A, (const char *) oper->children[1].a_id, &oper->children[1], &oper->children[0]); - return n; } else { - slang_ir_node *n, *lhs, *rhs; + slang_ir_node *lhs, *rhs; /* lhs and rhs type checking */ if (!_slang_assignment_compatible(A, @@ -3662,7 +4317,7 @@ _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper) if (lhs && rhs) { /* convert lhs swizzle into writemask */ const GLuint swizzle = root_swizzle(lhs->Store); - GLuint writemask, newSwizzle; + GLuint writemask, newSwizzle = 0x0; if (!swizzle_to_writemask(A, swizzle, &writemask, &newSwizzle)) { /* Non-simple writemask, need to swizzle right hand side in * order to put components into the right place. @@ -3670,12 +4325,21 @@ _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper) rhs = _slang_gen_swizzle(rhs, newSwizzle); } n = new_node2(IR_COPY, lhs, rhs); - return n; } else { return NULL; } } + + if (n && pred) { + /* predicate the assignment code on __notRetFlag */ + slang_ir_node *top, *cond; + + cond = _slang_gen_operation(A, pred); + top = new_if(cond, n, NULL); + return top; + } + return n; } @@ -4028,13 +4692,13 @@ _slang_gen_operation(slang_assemble_ctx * A, slang_operation *oper) case SLANG_OPER_WHILE: return _slang_gen_while(A, oper); case SLANG_OPER_BREAK: - if (!A->CurLoop) { + if (!current_loop_oper(A)) { slang_info_log_error(A->log, "'break' not in loop"); return NULL; } - return new_break(A->CurLoop); + return new_break(current_loop_ir(A)); case SLANG_OPER_CONTINUE: - if (!A->CurLoop) { + if (!current_loop_oper(A)) { slang_info_log_error(A->log, "'continue' not in loop"); return NULL; } @@ -4160,6 +4824,8 @@ _slang_gen_operation(slang_assemble_ctx * A, slang_operation *oper) return _slang_gen_method_call(A, oper); case SLANG_OPER_RETURN: return _slang_gen_return(A, oper); + case SLANG_OPER_RETURN_INLINED: + return _slang_gen_return(A, oper); case SLANG_OPER_LABEL: return new_label(oper->label); case SLANG_OPER_IDENTIFIER: @@ -4281,6 +4947,8 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var, const GLint totalSize = _slang_array_size(size, arrayLen); GLint texIndex = sampler_to_texture_index(var->type.specifier.type); + var->is_global = GL_TRUE; + /* check for sampler2D arrays */ if (texIndex == -1 && var->type.specifier._array) texIndex = sampler_to_texture_index(var->type.specifier._array->type); @@ -4333,13 +5001,25 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var, if (prog) { /* user-defined uniform */ if (datatype == GL_NONE) { - if (var->type.specifier.type == SLANG_SPEC_STRUCT) { + if ((var->type.specifier.type == SLANG_SPEC_ARRAY && + var->type.specifier._array->type == SLANG_SPEC_STRUCT) || + (var->type.specifier.type == SLANG_SPEC_STRUCT)) { /* temporary work-around */ GLenum datatype = GL_FLOAT; GLint uniformLoc = _mesa_add_uniform(prog->Parameters, varName, totalSize, datatype, NULL); store = _slang_new_ir_storage_swz(PROGRAM_UNIFORM, uniformLoc, totalSize, swizzle); + + if (arrayLen > 0) { + GLint a = arrayLen - 1; + GLint i; + for (i = 0; i < a; i++) { + GLfloat value = (GLfloat)(i + uniformLoc + 1); + (void) _mesa_add_parameter(prog->Parameters, PROGRAM_UNIFORM, + varName, 1, datatype, &value, NULL, 0x0); + } + } /* XXX what we need to do is unroll the struct into its * basic types, creating a uniform variable for each. @@ -4567,7 +5247,9 @@ _slang_codegen_function(slang_assemble_ctx * A, slang_function * fun) assert(A->program->Parameters ); assert(A->program->Varying); assert(A->vartable); - A->CurLoop = NULL; + + A->LoopDepth = 0; + A->UseReturnFlag = GL_FALSE; A->CurFunction = fun; /* fold constant expressions, etc. */ @@ -4615,6 +5297,14 @@ _slang_codegen_function(slang_assemble_ctx * A, slang_function * fun) printf("************* End codegen function ************\n\n"); #endif + if (A->UnresolvedRefs) { + /* Can't codegen at this time. + * At link time we'll concatenate all the vertex shaders and/or all + * the fragment shaders and try recompiling. + */ + return GL_TRUE; + } + /* Emit program instructions */ success = _slang_emit_code(n, A->vartable, A->program, A->pragmas, GL_TRUE, A->log); _slang_free_ir_tree(n); diff --git a/src/mesa/shader/slang/slang_codegen.h b/src/mesa/shader/slang/slang_codegen.h index f2daa034e4..ee3be55a45 100644 --- a/src/mesa/shader/slang/slang_codegen.h +++ b/src/mesa/shader/slang/slang_codegen.h @@ -31,6 +31,9 @@ #include "slang_compile.h" +#define MAX_LOOP_DEPTH 30 + + typedef struct slang_assemble_ctx_ { slang_atom_pool *atoms; @@ -39,9 +42,19 @@ typedef struct slang_assemble_ctx_ struct gl_sl_pragmas *pragmas; slang_var_table *vartable; slang_info_log *log; - struct slang_label_ *curFuncEndLabel; - struct slang_ir_node_ *CurLoop; + + /* current loop stack */ + const slang_operation *LoopOperStack[MAX_LOOP_DEPTH]; + struct slang_ir_node_ *LoopIRStack[MAX_LOOP_DEPTH]; + GLuint LoopDepth; + + /* current function */ struct slang_function_ *CurFunction; + struct slang_label_ *curFuncEndLabel; + GLboolean UseReturnFlag; + + GLboolean UnresolvedRefs; + GLboolean EmitContReturn; } slang_assemble_ctx; diff --git a/src/mesa/shader/slang/slang_compile.c b/src/mesa/shader/slang/slang_compile.c index 818b90b7a8..c1b97c7cb7 100644 --- a/src/mesa/shader/slang/slang_compile.c +++ b/src/mesa/shader/slang/slang_compile.c @@ -32,6 +32,7 @@ #include "main/context.h" #include "shader/program.h" #include "shader/programopt.h" +#include "shader/prog_optimize.h" #include "shader/prog_print.h" #include "shader/prog_parameter.h" #include "shader/grammar/grammar_mesa.h" @@ -1450,7 +1451,7 @@ parse_expression(slang_parse_ctx * C, slang_output_ctx * O, case OP_CALL: { GLboolean array_constructor = GL_FALSE; - GLint array_constructor_size; + GLint array_constructor_size = 0; op->type = SLANG_OPER_CALL; op->a_id = parse_identifier(C); @@ -1952,6 +1953,7 @@ static int parse_init_declarator(slang_parse_ctx * C, slang_output_ctx * O, const slang_fully_specified_type * type) { + GET_CURRENT_CONTEXT(ctx); /* a hack */ slang_variable *var; slang_atom a_name; @@ -2055,6 +2057,7 @@ parse_init_declarator(slang_parse_ctx * C, slang_output_ctx * O, /* emit code for global var decl */ if (C->global_scope) { slang_assemble_ctx A; + memset(&A, 0, sizeof(slang_assemble_ctx)); A.atoms = C->atoms; A.space.funcs = O->funs; A.space.structs = O->structs; @@ -2064,6 +2067,7 @@ parse_init_declarator(slang_parse_ctx * C, slang_output_ctx * O, A.vartable = O->vartable; A.log = C->L; A.curFuncEndLabel = NULL; + A.EmitContReturn = ctx->Shader.EmitContReturn; if (!_slang_codegen_global_variable(&A, var, C->type)) RETURN0; } @@ -2072,7 +2076,7 @@ parse_init_declarator(slang_parse_ctx * C, slang_output_ctx * O, if (C->global_scope) { if (var->initializer != NULL) { slang_assemble_ctx A; - + memset(&A, 0, sizeof(slang_assemble_ctx)); A.atoms = C->atoms; A.space.funcs = O->funs; A.space.structs = O->structs; @@ -2159,6 +2163,12 @@ parse_function(slang_parse_ctx * C, slang_output_ctx * O, int definition, (O->funs->num_functions + 1) * sizeof(slang_function)); if (O->funs->functions == NULL) { + /* Make sure that there are no functions marked, as the + * allocation is currently NULL, in order to avoid + * a potental segfault as we clean up later. + */ + O->funs->num_functions = 0; + slang_info_log_memory(C->L); slang_function_destruct(&parsed_func); return GL_FALSE; @@ -2414,7 +2424,7 @@ parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit, if (mainFunc) { /* assemble (generate code) for main() */ slang_assemble_ctx A; - + memset(&A, 0, sizeof(slang_assemble_ctx)); A.atoms = C->atoms; A.space.funcs = o.funs; A.space.structs = o.structs; @@ -2422,6 +2432,7 @@ parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit, A.program = o.program; A.pragmas = &shader->Pragmas; A.vartable = o.vartable; + A.EmitContReturn = ctx->Shader.EmitContReturn; A.log = C->L; /* main() takes no parameters */ @@ -2433,6 +2444,8 @@ parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit, _slang_codegen_function(&A, mainFunc); shader->Main = GL_TRUE; /* this shader defines main() */ + + shader->UnresolvedRefs = A.UnresolvedRefs; } _slang_pop_var_table(o.vartable); @@ -2794,6 +2807,19 @@ _slang_compile(GLcontext *ctx, struct gl_shader *shader) _mesa_print_program(shader->Program); #endif + shader->CompileStatus = success; + + if (success) { + if (shader->Pragmas.Optimize && + (ctx->Shader.Flags & GLSL_NO_OPT) == 0) { + _mesa_optimize_program(ctx, shader->Program); + } + } + + if (ctx->Shader.Flags & GLSL_LOG) { + _mesa_write_shader_to_file(shader); + } + return success; } diff --git a/src/mesa/shader/slang/slang_compile_operation.c b/src/mesa/shader/slang/slang_compile_operation.c index e650616880..3e2bdbc91f 100644 --- a/src/mesa/shader/slang/slang_compile_operation.c +++ b/src/mesa/shader/slang/slang_compile_operation.c @@ -119,11 +119,13 @@ slang_operation_copy(slang_operation * x, const slang_operation * y) if (!slang_operation_construct(&z)) return GL_FALSE; z.type = y->type; - z.children = (slang_operation *) - _slang_alloc(y->num_children * sizeof(slang_operation)); - if (z.children == NULL) { - slang_operation_destruct(&z); - return GL_FALSE; + if (y->num_children > 0) { + z.children = (slang_operation *) + _slang_alloc(y->num_children * sizeof(slang_operation)); + if (z.children == NULL) { + slang_operation_destruct(&z); + return GL_FALSE; + } } for (z.num_children = 0; z.num_children < y->num_children; z.num_children++) { @@ -152,6 +154,15 @@ slang_operation_copy(slang_operation * x, const slang_operation * y) return GL_FALSE; } } + + /* update scoping for children */ + for (i = 0; i < y->num_children; i++) { + if (y->children[i].locals && + y->children[i].locals->outer_scope == y->locals) { + z.children[i].locals->outer_scope = z.locals; + } + } + #if 0 z.var = y->var; z.fun = y->fun; @@ -198,6 +209,20 @@ slang_operation_delete(slang_operation *oper) } +void +slang_operation_free_children(slang_operation *oper) +{ + GLuint i; + for (i = 0; i < slang_oper_num_children(oper); i++) { + slang_operation *child = slang_oper_child(oper, i); + slang_operation_destruct(child); + } + _slang_free(oper->children); + oper->children = NULL; + oper->num_children = 0; +} + + slang_operation * slang_operation_grow(GLuint *numChildren, slang_operation **children) { @@ -263,6 +288,26 @@ slang_operation_insert(GLuint *numElements, slang_operation **array, } +/** + * Add/insert new child into given node at given position. + * \return pointer to the new child node + */ +slang_operation * +slang_operation_insert_child(slang_operation *oper, GLuint pos) +{ + slang_operation *newOp; + + newOp = slang_operation_insert(&oper->num_children, + &oper->children, + pos); + if (newOp) { + newOp->locals->outer_scope = oper->locals; + } + + return newOp; +} + + void _slang_operation_swap(slang_operation *oper0, slang_operation *oper1) { @@ -272,3 +317,16 @@ _slang_operation_swap(slang_operation *oper0, slang_operation *oper1) } +void +slang_operation_add_children(slang_operation *oper, GLuint num_children) +{ + GLuint i; + assert(oper->num_children == 0); + assert(oper->children == NULL); + oper->num_children = num_children; + oper->children = slang_operation_new(num_children); + for (i = 0; i < num_children; i++) { + oper->children[i].locals = _slang_variable_scope_new(oper->locals); + } +} + diff --git a/src/mesa/shader/slang/slang_compile_operation.h b/src/mesa/shader/slang/slang_compile_operation.h index 37af5d617c..58f1edeed8 100644 --- a/src/mesa/shader/slang/slang_compile_operation.h +++ b/src/mesa/shader/slang/slang_compile_operation.h @@ -42,6 +42,7 @@ typedef enum slang_operation_type_ SLANG_OPER_CONTINUE, /* "continue" statement */ SLANG_OPER_DISCARD, /* "discard" (kill fragment) statement */ SLANG_OPER_RETURN, /* "return" [expr] */ + SLANG_OPER_RETURN_INLINED, /* "return" [expr] from inlined function */ SLANG_OPER_LABEL, /* a jump target */ SLANG_OPER_EXPRESSION, /* [expr] */ SLANG_OPER_IF, /* "if" [0] then [1] else [2] */ @@ -150,6 +151,9 @@ slang_operation_new(GLuint count); extern void slang_operation_delete(slang_operation *oper); +extern void +slang_operation_free_children(slang_operation *oper); + extern slang_operation * slang_operation_grow(GLuint *numChildren, slang_operation **children); @@ -157,8 +161,66 @@ extern slang_operation * slang_operation_insert(GLuint *numChildren, slang_operation **children, GLuint pos); +extern slang_operation * +slang_operation_insert_child(slang_operation *oper, GLuint pos); + extern void _slang_operation_swap(slang_operation *oper0, slang_operation *oper1); +extern void +slang_operation_add_children(slang_operation *oper, GLuint num_children); + + +/** Return number of children of given node */ +static INLINE GLuint +slang_oper_num_children(const slang_operation *oper) +{ + return oper->num_children; +} + +/** Return child of given operation node */ +static INLINE slang_operation * +slang_oper_child(slang_operation *oper, GLuint child) +{ + assert(child < oper->num_children); + return &oper->children[child]; +} + + +/** Return child of given operation node, const version */ +static INLINE const slang_operation * +slang_oper_child_const(const slang_operation *oper, GLuint child) +{ + assert(child < oper->num_children); + return &oper->children[child]; +} + + +/** Init oper to a boolean literal. */ +static INLINE void +slang_operation_literal_bool(slang_operation *oper, GLboolean value) +{ + oper->type = SLANG_OPER_LITERAL_BOOL; + oper->literal[0] = + oper->literal[1] = + oper->literal[2] = + oper->literal[3] = (float) value; + oper->literal_size = 1; +} + + +/** Init oper to an int literal. */ +static INLINE void +slang_operation_literal_int(slang_operation *oper, GLint value) +{ + oper->type = SLANG_OPER_LITERAL_INT; + oper->literal[0] = + oper->literal[1] = + oper->literal[2] = + oper->literal[3] = (float) value; + oper->literal_size = 1; +} + + #endif /* SLANG_COMPILE_OPERATION_H */ diff --git a/src/mesa/shader/slang/slang_compile_variable.h b/src/mesa/shader/slang/slang_compile_variable.h index a667d91b47..b4585599f2 100644 --- a/src/mesa/shader/slang/slang_compile_variable.h +++ b/src/mesa/shader/slang/slang_compile_variable.h @@ -39,6 +39,7 @@ typedef struct slang_variable_ GLuint array_len; /**< only if type == SLANG_SPEC_ARRAy */ struct slang_operation_ *initializer; /**< Optional initializer code */ GLuint size; /**< Variable's size in bytes */ + GLboolean is_global; GLboolean isTemp; /**< a named temporary (__resultTmp) */ GLboolean declared; /**< for debug */ struct slang_ir_storage_ *store; /**< Storage for this var */ diff --git a/src/mesa/shader/slang/slang_emit.c b/src/mesa/shader/slang/slang_emit.c index ea446fa5d4..3f455e0640 100644 --- a/src/mesa/shader/slang/slang_emit.c +++ b/src/mesa/shader/slang/slang_emit.c @@ -62,6 +62,8 @@ typedef struct GLuint MaxInstructions; /**< size of prog->Instructions[] buffer */ + GLboolean UnresolvedFunctions; + /* code-gen options */ GLboolean EmitHighLevelInstructions; GLboolean EmitCondCodes; @@ -164,7 +166,7 @@ _slang_var_swizzle(GLint size, GLint comp) { switch (size) { case 1: - return MAKE_SWIZZLE4(comp, comp, comp, comp); + return MAKE_SWIZZLE4(comp, SWIZZLE_NIL, SWIZZLE_NIL, SWIZZLE_NIL); case 2: return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_NIL, SWIZZLE_NIL); case 3: @@ -446,12 +448,12 @@ new_instruction(slang_emit_info *emitInfo, gl_inst_opcode opcode) static struct prog_instruction * emit_arl_load(slang_emit_info *emitInfo, - enum register_file file, GLint index, GLuint swizzle) + gl_register_file file, GLint index, GLuint swizzle) { struct prog_instruction *inst = new_instruction(emitInfo, OPCODE_ARL); inst->SrcReg[0].File = file; inst->SrcReg[0].Index = index; - inst->SrcReg[0].Swizzle = swizzle; + inst->SrcReg[0].Swizzle = fix_swizzle(swizzle); inst->DstReg.File = PROGRAM_ADDRESS; inst->DstReg.Index = 0; inst->DstReg.WriteMask = WRITEMASK_X; @@ -872,7 +874,9 @@ emit_compare(slang_emit_info *emitInfo, slang_ir_node *n) emit(emitInfo, n->Children[1]); if (n->Children[0]->Store->Size != n->Children[1]->Store->Size) { + /* XXX this error should have been caught in slang_codegen.c */ slang_info_log_error(emitInfo->log, "invalid operands to == or !="); + n->Store = NULL; return NULL; } @@ -902,6 +906,7 @@ emit_compare(slang_emit_info *emitInfo, slang_ir_node *n) slang_ir_storage tempStore; if (!alloc_local_temp(emitInfo, &tempStore, 4)) { + n->Store = NULL; return NULL; /* out of temps */ } @@ -1130,7 +1135,7 @@ emit_negation(slang_emit_info *emitInfo, slang_ir_node *n) n->Children[0]->Store, NULL, NULL); - inst->SrcReg[0].NegateBase = NEGATE_XYZW; + inst->SrcReg[0].Negate = NEGATE_XYZW; return inst; } @@ -1259,16 +1264,33 @@ emit_tex(slang_emit_info *emitInfo, slang_ir_node *n) { struct prog_instruction *inst; gl_inst_opcode opcode; + GLboolean shadow = GL_FALSE; - if (n->Opcode == IR_TEX) { + switch (n->Opcode) { + case IR_TEX: opcode = OPCODE_TEX; - } - else if (n->Opcode == IR_TEXB) { + break; + case IR_TEX_SH: + opcode = OPCODE_TEX; + shadow = GL_TRUE; + break; + case IR_TEXB: opcode = OPCODE_TXB; - } - else { - assert(n->Opcode == IR_TEXP); + break; + case IR_TEXB_SH: + opcode = OPCODE_TXB; + shadow = GL_TRUE; + break; + case IR_TEXP: opcode = OPCODE_TXP; + break; + case IR_TEXP_SH: + opcode = OPCODE_TXP; + shadow = GL_TRUE; + break; + default: + _mesa_problem(NULL, "Bad IR TEX code"); + return NULL; } if (n->Children[0]->Opcode == IR_ELEMENT) { @@ -1300,6 +1322,8 @@ emit_tex(slang_emit_info *emitInfo, slang_ir_node *n) NULL, NULL); + inst->TexShadow = shadow; + /* Store->Index is the uniform/sampler index */ assert(n->Children[0]->Store->Index >= 0); inst->TexSrcUnit = n->Children[0]->Store->Index; @@ -1335,7 +1359,8 @@ emit_copy(slang_emit_info *emitInfo, slang_ir_node *n) inst = emit(emitInfo, n->Children[1]); if (!n->Children[1]->Store || n->Children[1]->Store->Index < 0) { - if (!emitInfo->log->text) { + if (!emitInfo->log->text && !emitInfo->UnresolvedFunctions) { + /* XXX this error should have been caught in slang_codegen.c */ slang_info_log_error(emitInfo->log, "invalid assignment"); } return NULL; @@ -1358,6 +1383,7 @@ emit_copy(slang_emit_info *emitInfo, slang_ir_node *n) #if PEEPHOLE_OPTIMIZATIONS if (inst && + (n->Children[1]->Opcode != IR_SWIZZLE) && _slang_is_temp(emitInfo->vt, n->Children[1]->Store) && (inst->DstReg.File == n->Children[1]->Store->File) && (inst->DstReg.Index == n->Children[1]->Store->Index) && @@ -1374,13 +1400,9 @@ emit_copy(slang_emit_info *emitInfo, slang_ir_node *n) * becomes: * MUL a, x, y; */ - if (n->Children[1]->Opcode != IR_SWIZZLE) - _slang_free_temp(emitInfo->vt, n->Children[1]->Store); - *n->Children[1]->Store = *n->Children[0]->Store; /* fixup the previous instruction (which stored the RHS result) */ assert(n->Children[0]->Store->Index >= 0); - storage_to_dst_reg(&inst->DstReg, n->Children[0]->Store); return inst; } @@ -1813,6 +1835,25 @@ emit_cont_break_if_true(slang_emit_info *emitInfo, slang_ir_node *n) } +/** + * Return the size of a swizzle mask given that some swizzle components + * may be NIL/undefined. For example: + * swizzle_size(".zzxx") = 4 + * swizzle_size(".xy??") = 2 + * swizzle_size(".w???") = 1 + */ +static GLuint +swizzle_size(GLuint swizzle) +{ + GLuint i; + for (i = 0; i < 4; i++) { + if (GET_SWZ(swizzle, i) == SWIZZLE_NIL) + return i; + } + return 4; +} + + static struct prog_instruction * emit_swizzle(slang_emit_info *emitInfo, slang_ir_node *n) { @@ -1820,14 +1861,25 @@ emit_swizzle(slang_emit_info *emitInfo, slang_ir_node *n) inst = emit(emitInfo, n->Children[0]); -#if 0 - assert(n->Store->Parent); - /* Apply this node's swizzle to parent's storage */ - GLuint swizzle = n->Store->Swizzle; - _slang_copy_ir_storage(n->Store, n->Store->Parent); - n->Store->Swizzle = _slang_swizzle_swizzle(n->Store->Swizzle, swizzle); + if (!n->Store->Parent) { + /* this covers a case such as "(b ? p : q).x" */ + n->Store->Parent = n->Children[0]->Store; + assert(n->Store->Parent); + } + + { + const GLuint swizzle = n->Store->Swizzle; + /* new storage is parent storage with updated Swizzle + Size fields */ + _slang_copy_ir_storage(n->Store, n->Store->Parent); + /* Apply this node's swizzle to parent's storage */ + n->Store->Swizzle = _slang_swizzle_swizzle(n->Store->Swizzle, swizzle); + /* Update size */ + n->Store->Size = swizzle_size(n->Store->Swizzle); + } + assert(!n->Store->Parent); -#endif + assert(n->Store->Index >= 0); + return inst; } @@ -2107,6 +2159,7 @@ emit_var_ref(slang_emit_info *emitInfo, slang_ir_node *n) if (index < 0) { /* error */ char s[100]; + /* XXX isn't this really an out of memory/resources error? */ _mesa_snprintf(s, sizeof(s), "Undefined variable '%s'", (char *) n->Var->a_name); slang_info_log_error(emitInfo->log, s); @@ -2120,6 +2173,10 @@ emit_var_ref(slang_emit_info *emitInfo, slang_ir_node *n) /* mark var as used */ _mesa_use_uniform(emitInfo->prog->Parameters, (char *) n->Var->a_name); } + else if (n->Store->File == PROGRAM_INPUT) { + assert(n->Store->Index >= 0); + emitInfo->prog->InputsRead |= (1 << n->Store->Index); + } if (n->Store->Index < 0) { /* probably ran out of registers */ @@ -2142,6 +2199,12 @@ emit(slang_emit_info *emitInfo, slang_ir_node *n) return NULL; } + if (n->Comment) { + inst = new_instruction(emitInfo, OPCODE_NOP); + inst->Comment = _mesa_strdup(n->Comment); + inst = NULL; + } + switch (n->Opcode) { case IR_SEQ: /* sequence of two sub-trees */ @@ -2235,6 +2298,9 @@ emit(slang_emit_info *emitInfo, slang_ir_node *n) case IR_TEX: case IR_TEXB: case IR_TEXP: + case IR_TEX_SH: + case IR_TEXB_SH: + case IR_TEXP_SH: return emit_tex(emitInfo, n); case IR_NEG: return emit_negation(emitInfo, n); @@ -2424,7 +2490,9 @@ _slang_emit_code(slang_ir_node *n, slang_var_table *vt, maxUniforms = ctx->Const.VertexProgram.MaxUniformComponents / 4; } if (prog->Parameters->NumParameters > maxUniforms) { - slang_info_log_error(log, "Constant/uniform register limit exceeded"); + slang_info_log_error(log, "Constant/uniform register limit exceeded " + "(max=%u vec4)", maxUniforms); + return GL_FALSE; } diff --git a/src/mesa/shader/slang/slang_emit.h b/src/mesa/shader/slang/slang_emit.h index 8ff52bf605..ab4c202d67 100644 --- a/src/mesa/shader/slang/slang_emit.h +++ b/src/mesa/shader/slang/slang_emit.h @@ -32,10 +32,6 @@ #include "main/mtypes.h" -extern void -slang_print_ir(const slang_ir_node *n, int indent); - - extern GLuint _slang_swizzle_swizzle(GLuint swz1, GLuint swz2); diff --git a/src/mesa/shader/slang/slang_ir.c b/src/mesa/shader/slang/slang_ir.c index e4c6e0ea51..1c7f7474e7 100644 --- a/src/mesa/shader/slang/slang_ir.c +++ b/src/mesa/shader/slang/slang_ir.c @@ -94,6 +94,9 @@ static const slang_ir_info IrInfo[] = { { IR_TEX, "IR_TEX", OPCODE_TEX, 4, 1 }, { IR_TEXB, "IR_TEXB", OPCODE_TXB, 4, 1 }, { IR_TEXP, "IR_TEXP", OPCODE_TXP, 4, 1 }, + { IR_TEX_SH, "IR_TEX_SH", OPCODE_TEX, 4, 1 }, + { IR_TEXB_SH, "IR_TEXB_SH", OPCODE_TXB, 4, 1 }, + { IR_TEXP_SH, "IR_TEXP_SH", OPCODE_TXP, 4, 1 }, { IR_FLOAT, "IR_FLOAT", OPCODE_NOP, 0, 0 }, /* float literal */ { IR_FIELD, "IR_FIELD", OPCODE_NOP, 0, 0 }, { IR_ELEMENT, "IR_ELEMENT", OPCODE_NOP, 0, 0 }, @@ -118,7 +121,7 @@ _slang_ir_info(slang_ir_opcode opcode) void _slang_init_ir_storage(slang_ir_storage *st, - enum register_file file, GLint index, GLint size, + gl_register_file file, GLint index, GLint size, GLuint swizzle) { st->File = file; @@ -134,7 +137,7 @@ _slang_init_ir_storage(slang_ir_storage *st, * Return a new slang_ir_storage object. */ slang_ir_storage * -_slang_new_ir_storage(enum register_file file, GLint index, GLint size) +_slang_new_ir_storage(gl_register_file file, GLint index, GLint size) { slang_ir_storage *st; st = (slang_ir_storage *) _slang_alloc(sizeof(slang_ir_storage)); @@ -154,7 +157,7 @@ _slang_new_ir_storage(enum register_file file, GLint index, GLint size) * Return a new slang_ir_storage object. */ slang_ir_storage * -_slang_new_ir_storage_swz(enum register_file file, GLint index, GLint size, +_slang_new_ir_storage_swz(gl_register_file file, GLint index, GLint size, GLuint swizzle) { slang_ir_storage *st; @@ -193,10 +196,10 @@ _slang_new_ir_storage_relative(GLint index, GLint size, slang_ir_storage * -_slang_new_ir_storage_indirect(enum register_file file, +_slang_new_ir_storage_indirect(gl_register_file file, GLint index, GLint size, - enum register_file indirectFile, + gl_register_file indirectFile, GLint indirectIndex, GLuint indirectSwizzle) { diff --git a/src/mesa/shader/slang/slang_ir.h b/src/mesa/shader/slang/slang_ir.h index 644269d491..e796693ed5 100644 --- a/src/mesa/shader/slang/slang_ir.h +++ b/src/mesa/shader/slang/slang_ir.h @@ -131,6 +131,10 @@ typedef enum IR_TEXB, /* texture lookup with LOD bias */ IR_TEXP, /* texture lookup with projection */ + IR_TEX_SH, /* texture lookup, shadow compare */ + IR_TEXB_SH, /* texture lookup with LOD bias, shadow compare */ + IR_TEXP_SH, /* texture lookup with projection, shadow compare */ + IR_FLOAT, IR_I_TO_F, /* int[4] to float[4] conversion */ IR_F_TO_I, /* float[4] to int[4] conversion */ @@ -167,7 +171,7 @@ typedef enum */ struct slang_ir_storage_ { - enum register_file File; /**< PROGRAM_TEMPORARY, PROGRAM_INPUT, etc */ + gl_register_file File; /**< PROGRAM_TEMPORARY, PROGRAM_INPUT, etc */ GLint Index; /**< -1 means unallocated */ GLint Size; /**< number of floats or ints */ GLuint Swizzle; /**< Swizzle AND writemask info */ @@ -176,7 +180,7 @@ struct slang_ir_storage_ GLboolean RelAddr; /* we'll remove this eventually */ GLboolean IsIndirect; - enum register_file IndirectFile; + gl_register_file IndirectFile; GLint IndirectIndex; GLuint IndirectSwizzle; GLuint TexTarget; /**< If File==PROGRAM_SAMPLER, one of TEXTURE_x_INDEX */ @@ -208,6 +212,7 @@ typedef struct slang_ir_node_ struct slang_ir_node_ *List; /**< For various linked lists */ struct slang_ir_node_ *Parent; /**< Pointer to logical parent (ie. loop) */ slang_label *Label; /**< Used for branches */ + const char *Comment; /**< If Opcode == IR_COMMENT */ } slang_ir_node; @@ -231,15 +236,15 @@ _slang_ir_info(slang_ir_opcode opcode); extern void _slang_init_ir_storage(slang_ir_storage *st, - enum register_file file, GLint index, GLint size, + gl_register_file file, GLint index, GLint size, GLuint swizzle); extern slang_ir_storage * -_slang_new_ir_storage(enum register_file file, GLint index, GLint size); +_slang_new_ir_storage(gl_register_file file, GLint index, GLint size); extern slang_ir_storage * -_slang_new_ir_storage_swz(enum register_file file, GLint index, GLint size, +_slang_new_ir_storage_swz(gl_register_file file, GLint index, GLint size, GLuint swizzle); extern slang_ir_storage * @@ -248,10 +253,10 @@ _slang_new_ir_storage_relative(GLint index, GLint size, extern slang_ir_storage * -_slang_new_ir_storage_indirect(enum register_file file, +_slang_new_ir_storage_indirect(gl_register_file file, GLint index, GLint size, - enum register_file indirectFile, + gl_register_file indirectFile, GLint indirectIndex, GLuint indirectSwizzle); diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c index c6d5cc0566..169c07f8ce 100644 --- a/src/mesa/shader/slang/slang_link.c +++ b/src/mesa/shader/slang/slang_link.c @@ -40,6 +40,7 @@ #include "shader/prog_statevars.h" #include "shader/prog_uniform.h" #include "shader/shader_api.h" +#include "slang_builtin.h" #include "slang_link.h" @@ -97,7 +98,8 @@ bits_agree(GLbitfield flags1, GLbitfield flags2, GLbitfield bit) * which inputs are centroid-sampled, invariant, etc. */ static GLboolean -link_varying_vars(struct gl_shader_program *shProg, struct gl_program *prog) +link_varying_vars(GLcontext *ctx, + struct gl_shader_program *shProg, struct gl_program *prog) { GLuint *map, i, firstVarying, newFile; GLbitfield *inOutFlags; @@ -156,8 +158,12 @@ link_varying_vars(struct gl_shader_program *shProg, struct gl_program *prog) var->Flags); } + if (shProg->Varying->NumParameters > ctx->Const.MaxVarying) { + link_error(shProg, "Too many varying variables"); + return GL_FALSE; + } + /* Map varying[i] to varying[j]. - * Plus, set prog->Input/OutputFlags[] as described above. * Note: the loop here takes care of arrays or large (sz>4) vars. */ { @@ -282,6 +288,7 @@ link_uniform_vars(GLcontext *ctx, for (i = 0; i < prog->NumInstructions; i++) { struct prog_instruction *inst = prog->Instructions + i; if (_mesa_is_tex_instruction(inst->Opcode)) { + /* here, inst->TexSrcUnit is really the sampler unit */ const GLint oldSampNum = inst->TexSrcUnit; #if 0 @@ -289,12 +296,14 @@ link_uniform_vars(GLcontext *ctx, inst->TexSrcUnit, samplerMap[ inst->TexSrcUnit ]); #endif - /* here, texUnit is really samplerUnit */ if (oldSampNum < Elements(samplerMap)) { const GLuint newSampNum = samplerMap[oldSampNum]; inst->TexSrcUnit = newSampNum; prog->SamplerTargets[newSampNum] = inst->TexSrcTarget; prog->SamplersUsed |= (1 << newSampNum); + if (inst->TexShadow) { + prog->ShadowSamplers |= (1 << newSampNum); + } } } } @@ -316,9 +325,10 @@ _slang_resolve_attributes(struct gl_shader_program *shProg, const struct gl_program *origProg, struct gl_program *linkedProg) { - GLint attribMap[MAX_VERTEX_ATTRIBS]; + GLint attribMap[MAX_VERTEX_GENERIC_ATTRIBS]; GLuint i, j; - GLbitfield usedAttributes; + GLbitfield usedAttributes; /* generics only, not legacy attributes */ + GLbitfield inputsRead = 0x0; assert(origProg != linkedProg); assert(origProg->Target == GL_VERTEX_PROGRAM_ARB); @@ -342,8 +352,17 @@ _slang_resolve_attributes(struct gl_shader_program *shProg, usedAttributes |= (1 << attr); } + /* If gl_Vertex is used, that actually counts against the limit + * on generic vertex attributes. This avoids the ambiguity of + * whether glVertexAttrib4fv(0, v) sets legacy attribute 0 (vert pos) + * or generic attribute[0]. If gl_Vertex is used, we want the former. + */ + if (origProg->InputsRead & VERT_BIT_POS) { + usedAttributes |= 0x1; + } + /* initialize the generic attribute map entries to -1 */ - for (i = 0; i < MAX_VERTEX_ATTRIBS; i++) { + for (i = 0; i < MAX_VERTEX_GENERIC_ATTRIBS; i++) { attribMap[i] = -1; } @@ -353,6 +372,10 @@ _slang_resolve_attributes(struct gl_shader_program *shProg, for (i = 0; i < linkedProg->NumInstructions; i++) { struct prog_instruction *inst = linkedProg->Instructions + i; for (j = 0; j < 3; j++) { + if (inst->SrcReg[j].File == PROGRAM_INPUT) { + inputsRead |= (1 << inst->SrcReg[j].Index); + } + if (inst->SrcReg[j].File == PROGRAM_INPUT && inst->SrcReg[j].Index >= VERT_ATTRIB_GENERIC0) { /* @@ -384,11 +407,11 @@ _slang_resolve_attributes(struct gl_shader_program *shProg, * Start at 1 since generic attribute 0 always aliases * glVertex/position. */ - for (attr = 1; attr < MAX_VERTEX_ATTRIBS; attr++) { + for (attr = 0; attr < MAX_VERTEX_GENERIC_ATTRIBS; attr++) { if (((1 << attr) & usedAttributes) == 0) break; } - if (attr == MAX_VERTEX_ATTRIBS) { + if (attr == MAX_VERTEX_GENERIC_ATTRIBS) { link_error(shProg, "Too many vertex attributes"); return GL_FALSE; } @@ -414,6 +437,20 @@ _slang_resolve_attributes(struct gl_shader_program *shProg, } } + /* Handle pre-defined attributes here (gl_Vertex, gl_Normal, etc). + * When the user queries the active attributes we need to include both + * the user-defined attributes and the built-in ones. + */ + for (i = VERT_ATTRIB_POS; i < VERT_ATTRIB_GENERIC0; i++) { + if (inputsRead & (1 << i)) { + _mesa_add_attribute(linkedProg->Attributes, + _slang_vert_attrib_name(i), + 4, /* size in floats */ + _slang_vert_attrib_type(i), + -1 /* attrib/input */); + } + } + return GL_TRUE; } @@ -467,37 +504,152 @@ _slang_update_inputs_outputs(struct gl_program *prog) for (j = 0; j < numSrc; j++) { if (inst->SrcReg[j].File == PROGRAM_INPUT) { prog->InputsRead |= 1 << inst->SrcReg[j].Index; - if (prog->Target == GL_FRAGMENT_PROGRAM_ARB && - inst->SrcReg[j].Index == FRAG_ATTRIB_FOGC) { - /* The fragment shader FOGC input is used for fog, - * front-facing and sprite/point coord. - */ - struct gl_fragment_program *fp = fragment_program(prog); - const GLint swz = GET_SWZ(inst->SrcReg[j].Swizzle, 0); - if (swz == SWIZZLE_X) - fp->UsesFogFragCoord = GL_TRUE; - else if (swz == SWIZZLE_Y) - fp->UsesFrontFacing = GL_TRUE; - else if (swz == SWIZZLE_Z || swz == SWIZZLE_W) - fp->UsesPointCoord = GL_TRUE; - } } else if (inst->SrcReg[j].File == PROGRAM_ADDRESS) { maxAddrReg = MAX2(maxAddrReg, (GLuint) (inst->SrcReg[j].Index + 1)); } } + if (inst->DstReg.File == PROGRAM_OUTPUT) { prog->OutputsWritten |= 1 << inst->DstReg.Index; + if (inst->DstReg.RelAddr) { + /* If the output attribute is indexed with relative addressing + * we know that it must be a varying or texcoord such as + * gl_TexCoord[i] = v; In this case, mark all the texcoords + * or varying outputs as being written. It's not an error if + * a vertex shader writes varying vars that aren't used by the + * fragment shader. But it is an error for a fragment shader + * to use varyings that are not written by the vertex shader. + */ + if (prog->Target == GL_VERTEX_PROGRAM_ARB) { + if (inst->DstReg.Index == VERT_RESULT_TEX0) { + /* mark all texcoord outputs as written */ + const GLbitfield mask = + ((1 << MAX_TEXTURE_COORD_UNITS) - 1) << VERT_RESULT_TEX0; + prog->OutputsWritten |= mask; + } + else if (inst->DstReg.Index == VERT_RESULT_VAR0) { + /* mark all generic varying outputs as written */ + const GLbitfield mask = + ((1 << MAX_VARYING) - 1) << VERT_RESULT_VAR0; + prog->OutputsWritten |= mask; + } + } + } } else if (inst->DstReg.File == PROGRAM_ADDRESS) { maxAddrReg = MAX2(maxAddrReg, inst->DstReg.Index + 1); } } - prog->NumAddressRegs = maxAddrReg; } + + + +/** + * Return a new shader whose source code is the concatenation of + * all the shader sources of the given type. + */ +static struct gl_shader * +concat_shaders(struct gl_shader_program *shProg, GLenum shaderType) +{ + struct gl_shader *newShader; + const struct gl_shader *firstShader = NULL; + GLuint shaderLengths[100]; + GLchar *source; + GLuint totalLen = 0, len = 0; + GLuint i; + + /* compute total size of new shader source code */ + for (i = 0; i < shProg->NumShaders; i++) { + const struct gl_shader *shader = shProg->Shaders[i]; + if (shader->Type == shaderType) { + shaderLengths[i] = _mesa_strlen(shader->Source); + totalLen += shaderLengths[i]; + if (!firstShader) + firstShader = shader; + } + } + + if (totalLen == 0) + return NULL; + + source = (GLchar *) _mesa_malloc(totalLen + 1); + if (!source) + return NULL; + + /* concatenate shaders */ + for (i = 0; i < shProg->NumShaders; i++) { + const struct gl_shader *shader = shProg->Shaders[i]; + if (shader->Type == shaderType) { + _mesa_memcpy(source + len, shader->Source, shaderLengths[i]); + len += shaderLengths[i]; + } + } + source[len] = '\0'; + /* + _mesa_printf("---NEW CONCATENATED SHADER---:\n%s\n------------\n", source); + */ + + newShader = CALLOC_STRUCT(gl_shader); + newShader->Type = shaderType; + newShader->Source = source; + newShader->Pragmas = firstShader->Pragmas; + + return newShader; +} + + +/** + * Search the shader program's list of shaders to find the one that + * defines main(). + * This will involve shader concatenation and recompilation if needed. + */ +static struct gl_shader * +get_main_shader(GLcontext *ctx, + struct gl_shader_program *shProg, GLenum type) +{ + struct gl_shader *shader = NULL; + GLuint i; + + /* + * Look for a shader that defines main() and has no unresolved references. + */ + for (i = 0; i < shProg->NumShaders; i++) { + shader = shProg->Shaders[i]; + if (shader->Type == type && + shader->Main && + !shader->UnresolvedRefs) { + /* All set! */ + return shader; + } + } + + /* + * There must have been unresolved references during the original + * compilation. Try concatenating all the shaders of the given type + * and recompile that. + */ + shader = concat_shaders(shProg, type); + + if (shader) { + _slang_compile(ctx, shader); + + /* Finally, check if recompiling failed */ + if (!shader->CompileStatus || + !shader->Main || + shader->UnresolvedRefs) { + link_error(shProg, "Unresolved symbols"); + return NULL; + } + } + + return shader; +} + + /** * Shader linker. Currently: * @@ -514,13 +666,16 @@ _slang_link(GLcontext *ctx, GLhandleARB programObj, struct gl_shader_program *shProg) { - const struct gl_vertex_program *vertProg; - const struct gl_fragment_program *fragProg; + const struct gl_vertex_program *vertProg = NULL; + const struct gl_fragment_program *fragProg = NULL; GLuint numSamplers = 0; GLuint i; _mesa_clear_shader_program_data(ctx, shProg); + /* Initialize LinkStatus to "success". Will be cleared if error. */ + shProg->LinkStatus = GL_TRUE; + /* check that all programs compiled successfully */ for (i = 0; i < shProg->NumShaders; i++) { if (!shProg->Shaders[i]->CompileStatus) { @@ -532,24 +687,19 @@ _slang_link(GLcontext *ctx, shProg->Uniforms = _mesa_new_uniform_list(); shProg->Varying = _mesa_new_parameter_list(); - /** - * Find attached vertex, fragment shaders defining main() + /* + * Find the vertex and fragment shaders which define main() */ - vertProg = NULL; - fragProg = NULL; - for (i = 0; i < shProg->NumShaders; i++) { - struct gl_shader *shader = shProg->Shaders[i]; - if (shader->Type == GL_VERTEX_SHADER) { - if (shader->Main) - vertProg = vertex_program(shader->Program); - } - else if (shader->Type == GL_FRAGMENT_SHADER) { - if (shader->Main) - fragProg = fragment_program(shader->Program); - } - else { - _mesa_problem(ctx, "unexpected shader target in slang_link()"); - } + { + struct gl_shader *vertShader, *fragShader; + vertShader = get_main_shader(ctx, shProg, GL_VERTEX_SHADER); + fragShader = get_main_shader(ctx, shProg, GL_FRAGMENT_SHADER); + if (vertShader) + vertProg = vertex_program(vertShader->Program); + if (fragShader) + fragProg = fragment_program(fragShader->Program); + if (!shProg->LinkStatus) + return; } #if FEATURE_es2_glsl @@ -573,6 +723,8 @@ _slang_link(GLcontext *ctx, struct gl_vertex_program *linked_vprog = vertex_program(_mesa_clone_program(ctx, &vertProg->Base)); shProg->VertexProgram = linked_vprog; /* refcount OK */ + /* vertex program ID not significant; just set Id for debugging purposes */ + shProg->VertexProgram->Base.Id = shProg->Name; ASSERT(shProg->VertexProgram->Base.RefCount == 1); } @@ -581,16 +733,18 @@ _slang_link(GLcontext *ctx, struct gl_fragment_program *linked_fprog = fragment_program(_mesa_clone_program(ctx, &fragProg->Base)); shProg->FragmentProgram = linked_fprog; /* refcount OK */ + /* vertex program ID not significant; just set Id for debugging purposes */ + shProg->FragmentProgram->Base.Id = shProg->Name; ASSERT(shProg->FragmentProgram->Base.RefCount == 1); } /* link varying vars */ if (shProg->VertexProgram) { - if (!link_varying_vars(shProg, &shProg->VertexProgram->Base)) + if (!link_varying_vars(ctx, shProg, &shProg->VertexProgram->Base)) return; } if (shProg->FragmentProgram) { - if (!link_varying_vars(shProg, &shProg->FragmentProgram->Base)) + if (!link_varying_vars(ctx, shProg, &shProg->FragmentProgram->Base)) return; } @@ -650,7 +804,7 @@ _slang_link(GLcontext *ctx, /* check that gl_FragColor and gl_FragData are not both written to */ if (shProg->FragmentProgram) { GLbitfield outputsWritten = shProg->FragmentProgram->Base.OutputsWritten; - if ((outputsWritten & ((1 << FRAG_RESULT_COLR))) && + if ((outputsWritten & ((1 << FRAG_RESULT_COLOR))) && (outputsWritten >= (1 << FRAG_RESULT_DATA0))) { link_error(shProg, "Fragment program cannot write both gl_FragColor" " and gl_FragData[].\n"); @@ -666,12 +820,12 @@ _slang_link(GLcontext *ctx, /* notify driver that a new fragment program has been compiled/linked */ ctx->Driver.ProgramStringNotify(ctx, GL_FRAGMENT_PROGRAM_ARB, &shProg->FragmentProgram->Base); - if (MESA_VERBOSE & VERBOSE_GLSL_DUMP) { - printf("Mesa original fragment program:\n"); + if (ctx->Shader.Flags & GLSL_DUMP) { + _mesa_printf("Mesa pre-link fragment program:\n"); _mesa_print_program(&fragProg->Base); _mesa_print_program_parameters(ctx, &fragProg->Base); - printf("Mesa post-link fragment program:\n"); + _mesa_printf("Mesa post-link fragment program:\n"); _mesa_print_program(&shProg->FragmentProgram->Base); _mesa_print_program_parameters(ctx, &shProg->FragmentProgram->Base); } @@ -684,20 +838,31 @@ _slang_link(GLcontext *ctx, /* notify driver that a new vertex program has been compiled/linked */ ctx->Driver.ProgramStringNotify(ctx, GL_VERTEX_PROGRAM_ARB, &shProg->VertexProgram->Base); - if (MESA_VERBOSE & VERBOSE_GLSL_DUMP) { - printf("Mesa original vertex program:\n"); + if (ctx->Shader.Flags & GLSL_DUMP) { + _mesa_printf("Mesa pre-link vertex program:\n"); _mesa_print_program(&vertProg->Base); _mesa_print_program_parameters(ctx, &vertProg->Base); - printf("Mesa post-link vertex program:\n"); + _mesa_printf("Mesa post-link vertex program:\n"); _mesa_print_program(&shProg->VertexProgram->Base); _mesa_print_program_parameters(ctx, &shProg->VertexProgram->Base); } } - if (MESA_VERBOSE & VERBOSE_GLSL_DUMP) { - printf("Varying vars:\n"); + /* Debug: */ + if (0) { + if (shProg->VertexProgram) + _mesa_postprocess_program(ctx, &shProg->VertexProgram->Base); + if (shProg->FragmentProgram) + _mesa_postprocess_program(ctx, &shProg->FragmentProgram->Base); + } + + if (ctx->Shader.Flags & GLSL_DUMP) { + _mesa_printf("Varying vars:\n"); _mesa_print_parameter_list(shProg->Varying); + if (shProg->InfoLog) { + _mesa_printf("Info Log: %s\n", shProg->InfoLog); + } } shProg->LinkStatus = (shProg->VertexProgram || shProg->FragmentProgram); diff --git a/src/mesa/shader/slang/slang_log.c b/src/mesa/shader/slang/slang_log.c index d5576d7ee2..d7d2b4fbfd 100644 --- a/src/mesa/shader/slang/slang_log.c +++ b/src/mesa/shader/slang/slang_log.c @@ -77,10 +77,6 @@ slang_info_log_message(slang_info_log * log, const char *prefix, slang_string_concat(log->text, msg); slang_string_concat(log->text, "\n"); - if (MESA_VERBOSE & VERBOSE_GLSL) { - _mesa_printf("Mesa: GLSL %s", log->text); - } - return 1; } diff --git a/src/mesa/shader/slang/slang_preprocess.c b/src/mesa/shader/slang/slang_preprocess.c index cd79c8b94a..e9a24cc009 100644 --- a/src/mesa/shader/slang/slang_preprocess.c +++ b/src/mesa/shader/slang/slang_preprocess.c @@ -508,8 +508,7 @@ static GLvoid pp_ext_init(pp_ext *self, const struct gl_extensions *extensions) { pp_ext_disable_all (self); - if (extensions->ARB_draw_buffers) - self->ARB_draw_buffers = GL_TRUE; + self->ARB_draw_buffers = GL_TRUE; if (extensions->NV_texture_rectangle) self->ARB_texture_rectangle = GL_TRUE; } @@ -531,14 +530,6 @@ pp_ext_set(pp_ext *self, const char *name, GLboolean enable) } -static void -pp_pragmas_init(struct gl_sl_pragmas *pragmas) -{ - pragmas->Optimize = GL_TRUE; - pragmas->Debug = GL_FALSE; -} - - /** * Called in response to #pragma. For example, "#pragma debug(on)" would * call this function as pp_pragma("debug", "on"). @@ -554,10 +545,12 @@ pp_pragma(struct gl_sl_pragmas *pragmas, const char *pragma, const char *param) if (!param) return GL_FALSE; /* missing required param */ if (_mesa_strcmp(param, "on") == 0) { - pragmas->Optimize = GL_TRUE; + if (!pragmas->IgnoreOptimize) + pragmas->Optimize = GL_TRUE; } else if (_mesa_strcmp(param, "off") == 0) { - pragmas->Optimize = GL_FALSE; + if (!pragmas->IgnoreOptimize) + pragmas->Optimize = GL_FALSE; } else { return GL_FALSE; /* invalid param */ @@ -567,10 +560,12 @@ pp_pragma(struct gl_sl_pragmas *pragmas, const char *pragma, const char *param) if (!param) return GL_FALSE; /* missing required param */ if (_mesa_strcmp(param, "on") == 0) { - pragmas->Debug = GL_TRUE; + if (!pragmas->IgnoreDebug) + pragmas->Debug = GL_TRUE; } else if (_mesa_strcmp(param, "off") == 0) { - pragmas->Debug = GL_FALSE; + if (!pragmas->IgnoreDebug) + pragmas->Debug = GL_FALSE; } else { return GL_FALSE; /* invalid param */ @@ -946,7 +941,6 @@ preprocess_source (slang_string *output, const char *source, } pp_state_init (&state, elog, extensions); - pp_pragmas_init (pragmas); /* add the predefined symbols to the symbol table */ for (i = 0; predefined[i]; i++) { @@ -1041,11 +1035,11 @@ preprocess_source (slang_string *output, const char *source, /* Parse optional macro parameters. */ while (prod[i++] != PARAM_END) { - if (state.cond.top->effective) { - pp_symbol *param; + pp_symbol *param; - id = (const char *) (&prod[i]); - idlen = _mesa_strlen (id); + id = (const char *) (&prod[i]); + idlen = _mesa_strlen (id); + if (state.cond.top->effective) { pp_annotate (output, "%s, ", id); param = pp_symbols_push (&symbol->parameters); if (param == NULL) @@ -1059,8 +1053,23 @@ preprocess_source (slang_string *output, const char *source, id = (const char *) (&prod[i]); idlen = _mesa_strlen (id); if (state.cond.top->effective) { + slang_string replacement; + expand_state es; + pp_annotate (output, ") %s", id); - slang_string_pushs (&symbol->replacement, id, idlen); + + slang_string_init(&replacement); + slang_string_pushs(&replacement, id, idlen); + + /* Expand macro replacement. */ + es.output = &symbol->replacement; + es.input = slang_string_cstr(&replacement); + es.state = &state; + if (!expand(&es, &state.symbols)) { + slang_string_free(&replacement); + goto error; + } + slang_string_free(&replacement); } i += idlen + 1; } @@ -1292,11 +1301,52 @@ error: /** + * Remove the continuation characters from the input string. + * This is the very first step in preprocessing and is effective + * even inside comment blocks. + * If there is a whitespace between a backslash and a newline, + * this is not considered as a line continuation. + * \return GL_TRUE for success, GL_FALSE otherwise. + */ +static GLboolean +_slang_preprocess_backslashes(slang_string *output, + const char *input) +{ + while (*input) { + if (input[0] == '\\') { + /* If a newline follows, eat the backslash and the newline. */ + if (input[1] == '\r') { + if (input[2] == '\n') { + input += 3; + } else { + input += 2; + } + } else if (input[1] == '\n') { + if (input[2] == '\r') { + input += 3; + } else { + input += 2; + } + } else { + /* Leave the backslash alone. */ + slang_string_pushc(output, *input++); + } + } else { + slang_string_pushc(output, *input++); + } + } + return GL_TRUE; +} + + +/** * Run preprocessor on source code. * \param extensions indicates which GL extensions are enabled * \param output the post-process results * \param input the input text * \param elog log to record warnings, errors + * \param extensions out extension settings + * \param pragmas in/out #pragma settings * \return GL_TRUE for success, GL_FALSE for error */ GLboolean @@ -1308,6 +1358,7 @@ _slang_preprocess_directives(slang_string *output, { grammar pid, eid; GLboolean success; + slang_string without_backslashes; pid = grammar_load_from_text ((const byte *) (slang_pp_directives_syn)); if (pid == 0) { @@ -1320,9 +1371,36 @@ _slang_preprocess_directives(slang_string *output, grammar_destroy (pid); return GL_FALSE; } - success = preprocess_source (output, input, pid, eid, elog, extensions, pragmas); + + slang_string_init(&without_backslashes); + success = _slang_preprocess_backslashes(&without_backslashes, input); + + if (0) { + _mesa_printf("Pre-processed shader:\n"); + _mesa_printf("%s", slang_string_cstr(&without_backslashes)); + _mesa_printf("----------------------\n"); + } + + if (success) { + success = preprocess_source(output, + slang_string_cstr(&without_backslashes), + pid, + eid, + elog, + extensions, + pragmas); + } + + slang_string_free(&without_backslashes); grammar_destroy (eid); grammar_destroy (pid); + + if (0) { + _mesa_printf("Post-processed shader:\n"); + _mesa_printf("%s", slang_string_cstr(output)); + _mesa_printf("----------------------\n"); + } + return success; } diff --git a/src/mesa/shader/slang/slang_print.c b/src/mesa/shader/slang/slang_print.c index bf1475f91d..98c7877534 100644 --- a/src/mesa/shader/slang/slang_print.c +++ b/src/mesa/shader/slang/slang_print.c @@ -261,6 +261,7 @@ slang_print_tree(const slang_operation *op, int indent) break; case SLANG_OPER_BLOCK_NEW_SCOPE: + case SLANG_OPER_NON_INLINED_CALL: spaces(indent); printf("{{ // new scope locals=%p outer=%p: ", (void *) op->locals, @@ -348,6 +349,13 @@ slang_print_tree(const slang_operation *op, int indent) slang_print_tree(&op->children[0], indent + 3); break; + case SLANG_OPER_RETURN_INLINED: + spaces(indent); + printf("RETURN_INLINED\n"); + if (op->num_children > 0) + slang_print_tree(&op->children[0], indent + 3); + break; + case SLANG_OPER_LABEL: spaces(indent); printf("LABEL %s\n", (char *) op->a_id); @@ -478,7 +486,7 @@ slang_print_tree(const slang_operation *op, int indent) (void *) scope, (void *) op->locals, (void *) op->locals->outer_scope); - assert(scope); + /*assert(scope);*/ } } break; diff --git a/src/mesa/shader/slang/slang_typeinfo.c b/src/mesa/shader/slang/slang_typeinfo.c index 1ef43f58c0..4a48bc8b8e 100644 --- a/src/mesa/shader/slang/slang_typeinfo.c +++ b/src/mesa/shader/slang/slang_typeinfo.c @@ -790,6 +790,7 @@ _slang_typeof_operation(slang_operation * op, return GL_FALSE; } ti->can_be_referenced = _ti.can_be_referenced; + ti->array_len = field->array_len; } else { GLuint rows; diff --git a/src/mesa/shader/slang/slang_vartable.c b/src/mesa/shader/slang/slang_vartable.c index de0c93957b..a4ebacc093 100644 --- a/src/mesa/shader/slang/slang_vartable.c +++ b/src/mesa/shader/slang/slang_vartable.c @@ -4,6 +4,7 @@ #include "shader/prog_print.h" #include "slang_compile.h" #include "slang_compile_variable.h" +#include "slang_emit.h" #include "slang_mem.h" #include "slang_vartable.h" #include "slang_ir.h" @@ -72,9 +73,8 @@ _slang_delete_var_table(slang_var_table *vt) /** - * Create new table, put at head, return ptr to it. - * XXX we should take a maxTemps parameter to indicate how many temporaries - * are available for the current shader/program target. + * Create new table on top of vartable stack. + * Used when we enter a {} block. */ void _slang_push_var_table(slang_var_table *vt) @@ -95,7 +95,8 @@ _slang_push_var_table(slang_var_table *vt) /** - * Destroy given table, return ptr to Parent + * Pop top entry from variable table. + * Used when we leave a {} block. */ void _slang_pop_var_table(slang_var_table *vt) @@ -125,10 +126,12 @@ _slang_pop_var_table(slang_var_table *vt) else comp = 0; - assert(store->Index >= 0); - for (j = 0; j < store->Size; j++) { - assert(t->Temps[store->Index * 4 + j + comp] == VAR); - t->Temps[store->Index * 4 + j + comp] = FREE; + /* store->Index may be -1 if we run out of registers */ + if (store->Index >= 0) { + for (j = 0; j < store->Size; j++) { + assert(t->Temps[store->Index * 4 + j + comp] == VAR); + t->Temps[store->Index * 4 + j + comp] = FREE; + } } store->Index = -1; } @@ -156,7 +159,7 @@ _slang_pop_var_table(slang_var_table *vt) /** - * Add a new variable to the given symbol table. + * Add a new variable to the given var/symbol table. */ void _slang_add_variable(slang_var_table *vt, slang_variable *v) @@ -214,6 +217,7 @@ alloc_reg(slang_var_table *vt, GLint size, GLboolean isTemp) for (i = 0; i <= vt->MaxRegisters * 4 - size; i += step) { GLuint found = 0; for (j = 0; j < (GLuint) size; j++) { + assert(i + j < 4 * MAX_PROGRAM_TEMPS); if (i + j < vt->MaxRegisters * 4 && t->Temps[i + j] == FREE) { found++; } @@ -225,13 +229,17 @@ alloc_reg(slang_var_table *vt, GLint size, GLboolean isTemp) /* found block of size free regs */ if (size > 1) assert(i % 4 == 0); - for (j = 0; j < (GLuint) size; j++) + for (j = 0; j < (GLuint) size; j++) { + assert(i + j < 4 * MAX_PROGRAM_TEMPS); t->Temps[i + j] = isTemp ? TEMP : VAR; + } assert(i < MAX_PROGRAM_TEMPS * 4); t->ValSize[i] = size; return i; } } + + /* if we get here, we ran out of registers */ return -1; } @@ -259,21 +267,7 @@ _slang_alloc_var(slang_var_table *vt, slang_ir_storage *store) return GL_FALSE; store->Index = i / 4; - if (store->Size == 1) { - const GLuint comp = i % 4; - store->Swizzle = MAKE_SWIZZLE4(comp, comp, comp, comp); - } - else if (store->Size == 2) { - store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, - SWIZZLE_NIL, SWIZZLE_NIL); - } - else if (store->Size == 3) { - store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, - SWIZZLE_Z, SWIZZLE_NIL); - } - else { - store->Swizzle = SWIZZLE_NOOP; - } + store->Swizzle = _slang_var_swizzle(store->Size, i % 4); if (dbg) printf("Alloc var storage sz %d at %d.%s (level %d) store %p\n", @@ -301,20 +295,7 @@ _slang_alloc_temp(slang_var_table *vt, slang_ir_storage *store) assert(store->Index < 0); store->Index = i / 4; - if (store->Size == 1) { - const GLuint comp = i % 4; - store->Swizzle = MAKE_SWIZZLE4(comp, comp, comp, comp); - } - else { - /* XXX improve swizzled for size=2/3, use for writemask... */ -#if 1 - if (store->Size == 2) { - store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, - SWIZZLE_NIL, SWIZZLE_NIL); - } -#endif - store->Swizzle = SWIZZLE_NOOP; - } + store->Swizzle = _slang_var_swizzle(store->Size, i % 4); if (dbg) printf("Alloc temp sz %d at %d.%s (level %d) store %p\n", store->Size, store->Index, |