diff options
Diffstat (limited to 'src/mesa/main/context.c')
-rw-r--r-- | src/mesa/main/context.c | 149 |
1 files changed, 90 insertions, 59 deletions
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c index ed3faecf0d..61c0861cbd 100644 --- a/src/mesa/main/context.c +++ b/src/mesa/main/context.c @@ -6,9 +6,9 @@ /* * Mesa 3-D graphics library - * Version: 6.5 + * Version: 7.1 * - * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2007 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"), @@ -809,7 +809,7 @@ _mesa_init_current(GLcontext *ctx) } /* redo special cases: */ - ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_WEIGHT], 1.0, 0.0, 0.0, 1.0 ); + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_WEIGHT], 1.0, 0.0, 0.0, 0.0 ); ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_NORMAL], 0.0, 0.0, 1.0, 1.0 ); ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR0], 1.0, 1.0, 1.0, 1.0 ); ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR1], 0.0, 0.0, 0.0, 1.0 ); @@ -819,11 +819,33 @@ _mesa_init_current(GLcontext *ctx) /** - * Init vertex/fragment program native limits from logical limits. + * Init vertex/fragment program limits. + * Important: drivers should override these with actual limits. */ static void -init_natives(struct gl_program_constants *prog) +init_program_limits(GLenum type, struct gl_program_constants *prog) { + prog->MaxInstructions = MAX_PROGRAM_INSTRUCTIONS; + prog->MaxAluInstructions = MAX_PROGRAM_INSTRUCTIONS; + prog->MaxTexInstructions = MAX_PROGRAM_INSTRUCTIONS; + prog->MaxTexIndirections = MAX_PROGRAM_INSTRUCTIONS; + prog->MaxTemps = MAX_PROGRAM_TEMPS; + prog->MaxEnvParams = MAX_PROGRAM_ENV_PARAMS; + prog->MaxLocalParams = MAX_PROGRAM_LOCAL_PARAMS; + prog->MaxUniformComponents = 4 * MAX_UNIFORMS; + + if (type == GL_VERTEX_PROGRAM_ARB) { + prog->MaxParameters = MAX_NV_VERTEX_PROGRAM_PARAMS; + prog->MaxAttribs = MAX_NV_VERTEX_PROGRAM_INPUTS; + prog->MaxAddressRegs = MAX_VERTEX_PROGRAM_ADDRESS_REGS; + } + else { + prog->MaxParameters = MAX_NV_FRAGMENT_PROGRAM_PARAMS; + prog->MaxAttribs = MAX_NV_FRAGMENT_PROGRAM_INPUTS; + prog->MaxAddressRegs = MAX_FRAGMENT_PROGRAM_ADDRESS_REGS; + } + + /* copy the above limits to init native limits */ prog->MaxNativeInstructions = prog->MaxInstructions; prog->MaxNativeAluInstructions = prog->MaxAluInstructions; prog->MaxNativeTexInstructions = prog->MaxTexInstructions; @@ -885,33 +907,10 @@ _mesa_init_constants(GLcontext *ctx) ctx->Const.MaxViewportWidth = MAX_WIDTH; ctx->Const.MaxViewportHeight = MAX_HEIGHT; #if FEATURE_ARB_vertex_program - ctx->Const.VertexProgram.MaxInstructions = MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS; - ctx->Const.VertexProgram.MaxAluInstructions = 0; - ctx->Const.VertexProgram.MaxTexInstructions = 0; - ctx->Const.VertexProgram.MaxTexIndirections = 0; - ctx->Const.VertexProgram.MaxAttribs = MAX_NV_VERTEX_PROGRAM_INPUTS; - ctx->Const.VertexProgram.MaxTemps = MAX_PROGRAM_TEMPS; - ctx->Const.VertexProgram.MaxParameters = MAX_NV_VERTEX_PROGRAM_PARAMS; - ctx->Const.VertexProgram.MaxLocalParams = MAX_PROGRAM_LOCAL_PARAMS; - ctx->Const.VertexProgram.MaxEnvParams = MAX_PROGRAM_ENV_PARAMS; - ctx->Const.VertexProgram.MaxAddressRegs = MAX_VERTEX_PROGRAM_ADDRESS_REGS; - ctx->Const.VertexProgram.MaxUniformComponents = 4 * MAX_UNIFORMS; - init_natives(&ctx->Const.VertexProgram); + init_program_limits(GL_VERTEX_PROGRAM_ARB, &ctx->Const.VertexProgram); #endif - #if FEATURE_ARB_fragment_program - ctx->Const.FragmentProgram.MaxInstructions = MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS; - ctx->Const.FragmentProgram.MaxAluInstructions = MAX_FRAGMENT_PROGRAM_ALU_INSTRUCTIONS; - ctx->Const.FragmentProgram.MaxTexInstructions = MAX_FRAGMENT_PROGRAM_TEX_INSTRUCTIONS; - ctx->Const.FragmentProgram.MaxTexIndirections = MAX_FRAGMENT_PROGRAM_TEX_INDIRECTIONS; - ctx->Const.FragmentProgram.MaxAttribs = MAX_NV_FRAGMENT_PROGRAM_INPUTS; - ctx->Const.FragmentProgram.MaxTemps = MAX_PROGRAM_TEMPS; - ctx->Const.FragmentProgram.MaxParameters = MAX_NV_FRAGMENT_PROGRAM_PARAMS; - ctx->Const.FragmentProgram.MaxLocalParams = MAX_PROGRAM_LOCAL_PARAMS; - ctx->Const.FragmentProgram.MaxEnvParams = MAX_PROGRAM_ENV_PARAMS; - ctx->Const.FragmentProgram.MaxAddressRegs = MAX_FRAGMENT_PROGRAM_ADDRESS_REGS; - ctx->Const.FragmentProgram.MaxUniformComponents = 4 * MAX_UNIFORMS; - init_natives(&ctx->Const.FragmentProgram); + init_program_limits(GL_FRAGMENT_PROGRAM_ARB, &ctx->Const.FragmentProgram); #endif ctx->Const.MaxProgramMatrices = MAX_PROGRAM_MATRICES; ctx->Const.MaxProgramMatrixStackDepth = MAX_PROGRAM_MATRIX_STACK_DEPTH; @@ -1064,7 +1063,29 @@ init_attrib_groups(GLcontext *ctx) /* Miscellaneous */ ctx->NewState = _NEW_ALL; ctx->ErrorValue = (GLenum) GL_NO_ERROR; - ctx->_Facing = 0; + ctx->varying_vp_inputs = ~0; + + return GL_TRUE; +} + + +/** + * Update default objects in a GL context with respect to shared state. + * + * \param ctx GL context. + * + * Removes references to old default objects, (texture objects, program + * objects, etc.) and changes to reference those from the current shared + * state. + */ +static GLboolean +update_default_objects(GLcontext *ctx) +{ + assert(ctx); + + _mesa_update_default_objects_program(ctx); + _mesa_update_default_objects_texture(ctx); + _mesa_update_default_objects_buffer_objects(ctx); return GL_TRUE; } @@ -1274,18 +1295,19 @@ _mesa_create_context(const GLvisual *visual, void _mesa_free_context_data( GLcontext *ctx ) { - /* if we're destroying the current context, unbind it first */ - if (ctx == _mesa_get_current_context()) { - _mesa_make_current(NULL, NULL, NULL); - } - else { - /* unreference WinSysDraw/Read buffers */ - _mesa_unreference_framebuffer(&ctx->WinSysDrawBuffer); - _mesa_unreference_framebuffer(&ctx->WinSysReadBuffer); - _mesa_unreference_framebuffer(&ctx->DrawBuffer); - _mesa_unreference_framebuffer(&ctx->ReadBuffer); + if (!_mesa_get_current_context()){ + /* No current context, but we may need one in order to delete + * texture objs, etc. So temporarily bind the context now. + */ + _mesa_make_current(ctx, NULL, NULL); } + /* unreference WinSysDraw/Read buffers */ + _mesa_unreference_framebuffer(&ctx->WinSysDrawBuffer); + _mesa_unreference_framebuffer(&ctx->WinSysReadBuffer); + _mesa_unreference_framebuffer(&ctx->DrawBuffer); + _mesa_unreference_framebuffer(&ctx->ReadBuffer); + _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, NULL); _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL); _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram, NULL); @@ -1294,6 +1316,9 @@ _mesa_free_context_data( GLcontext *ctx ) _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL); _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram, NULL); +#if FEATURE_attrib_stack + _mesa_free_attrib_data(ctx); +#endif _mesa_free_lighting_data( ctx ); #if FEATURE_evaluators _mesa_free_eval_data( ctx ); @@ -1331,6 +1356,11 @@ _mesa_free_context_data( GLcontext *ctx ) if (ctx->Extensions.String) _mesa_free((void *) ctx->Extensions.String); + + /* unbind the context if it's currently bound */ + if (ctx == _mesa_get_current_context()) { + _mesa_make_current(NULL, NULL, NULL); + } } @@ -1562,8 +1592,6 @@ void _mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer, GLframebuffer *readBuffer ) { - GET_CURRENT_CONTEXT(oldCtx); - if (MESA_VERBOSE & VERBOSE_API) _mesa_debug(newCtx, "_mesa_make_current()\n"); @@ -1588,13 +1616,6 @@ _mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer, _glapi_set_context((void *) newCtx); ASSERT(_mesa_get_current_context() == newCtx); - if (oldCtx) { - _mesa_unreference_framebuffer(&oldCtx->WinSysDrawBuffer); - _mesa_unreference_framebuffer(&oldCtx->WinSysReadBuffer); - _mesa_unreference_framebuffer(&oldCtx->DrawBuffer); - _mesa_unreference_framebuffer(&oldCtx->ReadBuffer); - } - if (!newCtx) { _glapi_set_dispatch(NULL); /* none current */ } @@ -1614,10 +1635,12 @@ _mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer, * or not bound to a user-created FBO. */ if (!newCtx->DrawBuffer || newCtx->DrawBuffer->Name == 0) { - /* fix up the fb fields - these will end up wrong otherwise - * if the DRIdrawable changes, and everything relies on them. - * This is a bit messy (same as needed in _mesa_BindFramebufferEXT) - */ + /* KW: merge conflict here, revisit. + */ + /* fix up the fb fields - these will end up wrong otherwise + * if the DRIdrawable changes, and everything relies on them. + * This is a bit messy (same as needed in _mesa_BindFramebufferEXT) + */ unsigned int i; GLenum buffers[MAX_DRAW_BUFFERS]; @@ -1631,9 +1654,11 @@ _mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer, } if (!newCtx->ReadBuffer || newCtx->ReadBuffer->Name == 0) { _mesa_reference_framebuffer(&newCtx->ReadBuffer, readBuffer); - _mesa_readbuffer_update_fields(newCtx, newCtx->Pixel.ReadBuffer); } + /* XXX only set this flag if we're really changing the draw/read + * framebuffer bindings. + */ newCtx->NewState |= _NEW_BUFFERS; #if 1 @@ -1701,12 +1726,18 @@ GLboolean _mesa_share_state(GLcontext *ctx, GLcontext *ctxToShare) { if (ctx && ctxToShare && ctx->Shared && ctxToShare->Shared) { - ctx->Shared->RefCount--; - if (ctx->Shared->RefCount == 0) { - free_shared_state(ctx, ctx->Shared); - } + struct gl_shared_state *oldSharedState = ctx->Shared; + ctx->Shared = ctxToShare->Shared; ctx->Shared->RefCount++; + + update_default_objects(ctx); + + oldSharedState->RefCount--; + if (oldSharedState->RefCount == 0) { + free_shared_state(ctx, oldSharedState); + } + return GL_TRUE; } else { |