| /* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| |
| #ifndef STATE_H |
| #define STATE_H |
| |
| #include "mtypes.h" |
| |
| extern void |
| _mesa_update_state(struct gl_context *ctx); |
| |
| /* As above but can only be called between _mesa_lock_context_textures() and |
| * _mesa_unlock_context_textures(). |
| */ |
| extern void |
| _mesa_update_state_locked(struct gl_context *ctx); |
| |
| |
| extern void |
| _mesa_set_varying_vp_inputs(struct gl_context *ctx, GLbitfield varying_inputs); |
| |
| |
| extern void |
| _mesa_set_vp_override(struct gl_context *ctx, GLboolean flag); |
| |
| |
| /** |
| * Update ctx->VertexProgram._VertexProgramMode. |
| */ |
| extern void |
| _mesa_update_vertex_processing_mode(struct gl_context *ctx); |
| |
| |
| /** |
| * Set the _DrawVAO and the net enabled arrays. |
| */ |
| void |
| _mesa_set_draw_vao(struct gl_context *ctx, struct gl_vertex_array_object *vao, |
| GLbitfield filter); |
| |
| |
| static inline bool |
| _mesa_ati_fragment_shader_enabled(const struct gl_context *ctx) |
| { |
| return ctx->ATIFragmentShader.Enabled && |
| ctx->ATIFragmentShader.Current->Instructions[0]; |
| } |
| |
| /** |
| * Is the secondary color needed? |
| */ |
| static inline GLboolean |
| _mesa_need_secondary_color(const struct gl_context *ctx) |
| { |
| if (ctx->Light.Enabled && |
| ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR) |
| return GL_TRUE; |
| |
| if (ctx->Fog.ColorSumEnabled) |
| return GL_TRUE; |
| |
| if (ctx->VertexProgram._Current && |
| (ctx->VertexProgram._Current != ctx->VertexProgram._TnlProgram) && |
| (ctx->VertexProgram._Current->info.inputs_read & VERT_BIT_COLOR1)) |
| return GL_TRUE; |
| |
| if (ctx->FragmentProgram._Current && |
| (ctx->FragmentProgram._Current != ctx->FragmentProgram._TexEnvProgram) && |
| (ctx->FragmentProgram._Current->info.inputs_read & VARYING_BIT_COL1)) |
| return GL_TRUE; |
| |
| if (_mesa_ati_fragment_shader_enabled(ctx)) |
| return GL_TRUE; |
| |
| return GL_FALSE; |
| } |
| |
| static inline bool |
| _mesa_arb_vertex_program_enabled(const struct gl_context *ctx) |
| { |
| return ctx->VertexProgram.Enabled && |
| ctx->VertexProgram.Current->arb.Instructions; |
| } |
| |
| /** Compute two sided lighting state for fixed function or programs. */ |
| static inline bool |
| _mesa_vertex_program_two_side_enabled(const struct gl_context *ctx) |
| { |
| if (ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX] || |
| _mesa_arb_vertex_program_enabled(ctx)) |
| return ctx->VertexProgram.TwoSideEnabled; |
| |
| return ctx->Light.Enabled && ctx->Light.Model.TwoSide; |
| } |
| |
| /** Return 0=GL_CCW or 1=GL_CW */ |
| static inline bool |
| _mesa_polygon_get_front_bit(const struct gl_context *ctx) |
| { |
| if (ctx->Transform.ClipOrigin == GL_LOWER_LEFT) |
| return ctx->Polygon.FrontFace == GL_CW; |
| |
| return ctx->Polygon.FrontFace == GL_CCW; |
| } |
| |
| static inline bool |
| _mesa_arb_fragment_program_enabled(const struct gl_context *ctx) |
| { |
| return ctx->FragmentProgram.Enabled && |
| ctx->FragmentProgram.Current->arb.Instructions; |
| } |
| |
| #endif |