diff options
Diffstat (limited to 'src/mesa/main/enable.c')
-rw-r--r-- | src/mesa/main/enable.c | 174 |
1 files changed, 102 insertions, 72 deletions
diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c index e0483a72e81..2b54fac6949 100644 --- a/src/mesa/main/enable.c +++ b/src/mesa/main/enable.c @@ -201,6 +201,26 @@ _mesa_DisableClientState( GLenum cap ) } + +/** + * Return pointer to current texture unit for setting/getting coordinate + * state. + * Note that we'll set GL_INVALID_OPERATION if the active texture unit is + * higher than the number of supported coordinate units. And we'll return NULL. + */ +static struct gl_texture_unit * +get_texcoord_unit(GLcontext *ctx) +{ + if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glEnable/Disable(texcoord unit)"); + return NULL; + } + else { + return &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; + } +} + + /** * Helper function to enable or disable a texture target. */ @@ -321,10 +341,6 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state) ctx->Transform.CullVertexFlag = state; break; case GL_DEPTH_TEST: - if (state && ctx->DrawBuffer->Visual.depthBits == 0) { - _mesa_warning(ctx,"glEnable(GL_DEPTH_TEST) but no depth buffer"); - return; - } if (ctx->Depth.Test == state) return; FLUSH_VERTICES(ctx, _NEW_DEPTH); @@ -612,54 +628,62 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state) return; } break; - case GL_TEXTURE_GEN_Q: { - GLuint unit = ctx->Texture.CurrentUnit; - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - GLuint newenabled = texUnit->TexGenEnabled & ~Q_BIT; - if (state) - newenabled |= Q_BIT; - if (texUnit->TexGenEnabled == newenabled) - return; - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->TexGenEnabled = newenabled; + case GL_TEXTURE_GEN_Q: + { + struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); + if (texUnit) { + GLuint newenabled = texUnit->TexGenEnabled & ~Q_BIT; + if (state) + newenabled |= Q_BIT; + if (texUnit->TexGenEnabled == newenabled) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->TexGenEnabled = newenabled; + } + } break; - } - case GL_TEXTURE_GEN_R: { - GLuint unit = ctx->Texture.CurrentUnit; - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - GLuint newenabled = texUnit->TexGenEnabled & ~R_BIT; - if (state) - newenabled |= R_BIT; - if (texUnit->TexGenEnabled == newenabled) - return; - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->TexGenEnabled = newenabled; + case GL_TEXTURE_GEN_R: + { + struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); + if (texUnit) { + GLuint newenabled = texUnit->TexGenEnabled & ~R_BIT; + if (state) + newenabled |= R_BIT; + if (texUnit->TexGenEnabled == newenabled) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->TexGenEnabled = newenabled; + } + } break; - } - case GL_TEXTURE_GEN_S: { - GLuint unit = ctx->Texture.CurrentUnit; - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - GLuint newenabled = texUnit->TexGenEnabled & ~S_BIT; - if (state) - newenabled |= S_BIT; - if (texUnit->TexGenEnabled == newenabled) - return; - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->TexGenEnabled = newenabled; + case GL_TEXTURE_GEN_S: + { + struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); + if (texUnit) { + GLuint newenabled = texUnit->TexGenEnabled & ~S_BIT; + if (state) + newenabled |= S_BIT; + if (texUnit->TexGenEnabled == newenabled) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->TexGenEnabled = newenabled; + } + } break; - } - case GL_TEXTURE_GEN_T: { - GLuint unit = ctx->Texture.CurrentUnit; - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - GLuint newenabled = texUnit->TexGenEnabled & ~T_BIT; - if (state) - newenabled |= T_BIT; - if (texUnit->TexGenEnabled == newenabled) - return; - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texUnit->TexGenEnabled = newenabled; + case GL_TEXTURE_GEN_T: + { + struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); + if (texUnit) { + GLuint newenabled = texUnit->TexGenEnabled & ~T_BIT; + if (state) + newenabled |= T_BIT; + if (texUnit->TexGenEnabled == newenabled) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->TexGenEnabled = newenabled; + } + } break; - } /* * CLIENT STATE!!! @@ -748,35 +772,30 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state) /* GL_ARB_multisample */ case GL_MULTISAMPLE_ARB: - CHECK_EXTENSION(ARB_multisample, cap); if (ctx->Multisample.Enabled == state) return; FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); ctx->Multisample.Enabled = state; break; case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB: - CHECK_EXTENSION(ARB_multisample, cap); if (ctx->Multisample.SampleAlphaToCoverage == state) return; FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); ctx->Multisample.SampleAlphaToCoverage = state; break; case GL_SAMPLE_ALPHA_TO_ONE_ARB: - CHECK_EXTENSION(ARB_multisample, cap); if (ctx->Multisample.SampleAlphaToOne == state) return; FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); ctx->Multisample.SampleAlphaToOne = state; break; case GL_SAMPLE_COVERAGE_ARB: - CHECK_EXTENSION(ARB_multisample, cap); if (ctx->Multisample.SampleCoverage == state) return; FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); ctx->Multisample.SampleCoverage = state; break; case GL_SAMPLE_COVERAGE_INVERT_ARB: - CHECK_EXTENSION(ARB_multisample, cap); if (ctx->Multisample.SampleCoverageInvert == state) return; FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); @@ -898,10 +917,13 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state) return; FLUSH_VERTICES(ctx, _NEW_STENCIL); ctx->Stencil.TestTwoSide = state; - if (state) + if (state) { + ctx->Stencil._BackFace = 2; ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL; - else + } else { + ctx->Stencil._BackFace = 1; ctx->_TriangleCaps &= ~DD_TRI_TWOSTENCIL; + } break; #if FEATURE_ARB_fragment_program @@ -929,6 +951,7 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state) break; /* GL_MESA_program_debug */ +#if FEATURE_MESA_program_debug case GL_FRAGMENT_PROGRAM_CALLBACK_MESA: CHECK_EXTENSION(MESA_program_debug, cap); ctx->FragmentProgram.CallbackEnabled = state; @@ -937,6 +960,7 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state) CHECK_EXTENSION(MESA_program_debug, cap); ctx->VertexProgram.CallbackEnabled = state; break; +#endif #if FEATURE_ATI_fragment_shader case GL_FRAGMENT_SHADER_ATI: @@ -1153,28 +1177,36 @@ _mesa_IsEnabled( GLenum cap ) return is_texture_enabled(ctx, TEXTURE_3D_BIT); case GL_TEXTURE_GEN_Q: { - const struct gl_texture_unit *texUnit; - texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - return (texUnit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE; + const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); + if (texUnit) { + return (texUnit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE; + } } + return GL_FALSE; case GL_TEXTURE_GEN_R: { - const struct gl_texture_unit *texUnit; - texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - return (texUnit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE; + const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); + if (texUnit) { + return (texUnit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE; + } } + return GL_FALSE; case GL_TEXTURE_GEN_S: { - const struct gl_texture_unit *texUnit; - texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - return (texUnit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE; + const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); + if (texUnit) { + return (texUnit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE; + } } + return GL_FALSE; case GL_TEXTURE_GEN_T: { - const struct gl_texture_unit *texUnit; - texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - return (texUnit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE; + const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); + if (texUnit) { + return (texUnit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE; + } } + return GL_FALSE; /* * CLIENT STATE!!! @@ -1249,19 +1281,14 @@ _mesa_IsEnabled( GLenum cap ) /* GL_ARB_multisample */ case GL_MULTISAMPLE_ARB: - CHECK_EXTENSION(ARB_multisample); return ctx->Multisample.Enabled; case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB: - CHECK_EXTENSION(ARB_multisample); return ctx->Multisample.SampleAlphaToCoverage; case GL_SAMPLE_ALPHA_TO_ONE_ARB: - CHECK_EXTENSION(ARB_multisample); return ctx->Multisample.SampleAlphaToOne; case GL_SAMPLE_COVERAGE_ARB: - CHECK_EXTENSION(ARB_multisample); return ctx->Multisample.SampleCoverage; case GL_SAMPLE_COVERAGE_INVERT_ARB: - CHECK_EXTENSION(ARB_multisample); return ctx->Multisample.SampleCoverageInvert; /* GL_IBM_rasterpos_clip */ @@ -1378,12 +1405,15 @@ _mesa_IsEnabled( GLenum cap ) return ctx->Depth.BoundsTest; /* GL_MESA_program_debug */ +#if FEATURE_MESA_program_debug case GL_FRAGMENT_PROGRAM_CALLBACK_MESA: CHECK_EXTENSION(MESA_program_debug); return ctx->FragmentProgram.CallbackEnabled; case GL_VERTEX_PROGRAM_CALLBACK_MESA: CHECK_EXTENSION(MESA_program_debug); return ctx->VertexProgram.CallbackEnabled; +#endif + #if FEATURE_ATI_fragment_shader case GL_FRAGMENT_SHADER_ATI: CHECK_EXTENSION(ATI_fragment_shader); |