diff options
Diffstat (limited to 'src/mesa/main/context.c')
| -rw-r--r-- | src/mesa/main/context.c | 78 |
1 files changed, 67 insertions, 11 deletions
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c index 0a192de8c0a..79fa01849e0 100644 --- a/src/mesa/main/context.c +++ b/src/mesa/main/context.c @@ -489,8 +489,8 @@ init_program_limits(struct gl_constants *consts, gl_shader_stage stage, prog->MaxOutputComponents = 16 * 4; /* old limit not to break tnl and swrast */ break; case MESA_SHADER_FRAGMENT: - prog->MaxParameters = MAX_NV_FRAGMENT_PROGRAM_PARAMS; - prog->MaxAttribs = MAX_NV_FRAGMENT_PROGRAM_INPUTS; + prog->MaxParameters = MAX_FRAGMENT_PROGRAM_PARAMS; + prog->MaxAttribs = MAX_FRAGMENT_PROGRAM_INPUTS; prog->MaxAddressRegs = MAX_FRAGMENT_PROGRAM_ADDRESS_REGS; prog->MaxUniformComponents = 4 * MAX_UNIFORMS; prog->MaxInputComponents = 16 * 4; /* old limit not to break tnl and swrast */ @@ -883,6 +883,19 @@ update_default_objects(struct gl_context *ctx) } +/* XXX this is temporary and should be removed at some point in the + * future when there's a reasonable expectation that the libGL library + * contains the _glapi_new_nop_table() and _glapi_set_nop_handler() + * functions which were added in Mesa 10.6. + */ +#if !defined(_WIN32) +/* Avoid libGL / driver ABI break */ +#define USE_GLAPI_NOP_FEATURES 0 +#else +#define USE_GLAPI_NOP_FEATURES 1 +#endif + + /** * This function is called by the glapi no-op functions. For each OpenGL * function/entrypoint there's a simple no-op function. These "no-op" @@ -898,6 +911,7 @@ update_default_objects(struct gl_context *ctx) * * \param name the name of the OpenGL function */ +#if USE_GLAPI_NOP_FEATURES static void nop_handler(const char *name) { @@ -914,6 +928,7 @@ nop_handler(const char *name) } #endif } +#endif /** @@ -923,12 +938,52 @@ nop_handler(const char *name) static void GLAPIENTRY nop_glFlush(void) { - /* don't record an error like we do in _mesa_generic_nop() */ + /* don't record an error like we do in nop_handler() */ +} +#endif + + +#if !USE_GLAPI_NOP_FEATURES +static int +generic_nop(void) +{ + GET_CURRENT_CONTEXT(ctx); + _mesa_error(ctx, GL_INVALID_OPERATION, + "unsupported function called " + "(unsupported extension or deprecated function?)"); + return 0; } #endif /** + * Create a new API dispatch table in which all entries point to the + * generic_nop() function. This will not work on Windows because of + * the __stdcall convention which requires the callee to clean up the + * call stack. That's impossible with one generic no-op function. + */ +struct _glapi_table * +_mesa_new_nop_table(unsigned numEntries) +{ + struct _glapi_table *table; + +#if !USE_GLAPI_NOP_FEATURES + table = malloc(numEntries * sizeof(_glapi_proc)); + if (table) { + _glapi_proc *entry = (_glapi_proc *) table; + unsigned i; + for (i = 0; i < numEntries; i++) { + entry[i] = (_glapi_proc) generic_nop; + } + } +#else + table = _glapi_new_nop_table(numEntries); +#endif + return table; +} + + +/** * Allocate and initialize a new dispatch table. The table will be * populated with pointers to "no-op" functions. In turn, the no-op * functions will call nop_handler() above. @@ -941,8 +996,9 @@ alloc_dispatch_table(void) * Mesa we do this to accommodate different versions of libGL and various * DRI drivers. */ - GLint numEntries = MAX2(_glapi_get_dispatch_table_size(), _gloffset_COUNT); - struct _glapi_table *table = _glapi_new_nop_table(numEntries); + int numEntries = MAX2(_glapi_get_dispatch_table_size(), _gloffset_COUNT); + + struct _glapi_table *table = _mesa_new_nop_table(numEntries); #if defined(_WIN32) if (table) { @@ -966,7 +1022,9 @@ alloc_dispatch_table(void) } #endif +#if USE_GLAPI_NOP_FEATURES _glapi_set_nop_handler(nop_handler); +#endif return table; } @@ -1111,9 +1169,7 @@ _mesa_initialize_context(struct gl_context *ctx, ctx->HasConfig = GL_FALSE; } - if (_mesa_is_desktop_gl(ctx)) { - _mesa_override_gl_version(ctx); - } + _mesa_override_gl_version(ctx); /* misc one-time initializations */ one_time_init(ctx); @@ -1275,7 +1331,6 @@ _mesa_free_context_data( struct gl_context *ctx ) _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL); _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram, NULL); - _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, NULL); _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, NULL); _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL); @@ -1565,7 +1620,8 @@ handle_first_current(struct gl_context *ctx) else buffer = GL_FRONT; - _mesa_drawbuffers(ctx, 1, &buffer, NULL /* destMask */); + _mesa_drawbuffers(ctx, ctx->DrawBuffer, 1, &buffer, + NULL /* destMask */); } if (ctx->ReadBuffer != _mesa_get_incomplete_framebuffer()) { @@ -1578,7 +1634,7 @@ handle_first_current(struct gl_context *ctx) bufferIndex = BUFFER_FRONT_LEFT; } - _mesa_readbuffer(ctx, buffer, bufferIndex); + _mesa_readbuffer(ctx, ctx->ReadBuffer, buffer, bufferIndex); } } |