diff options
Diffstat (limited to 'src/mesa/main/context.c')
| -rw-r--r-- | src/mesa/main/context.c | 260 |
1 files changed, 104 insertions, 156 deletions
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c index 628e7341916..cf8bb8bd479 100644 --- a/src/mesa/main/context.c +++ b/src/mesa/main/context.c @@ -1,8 +1,8 @@ -/* $Id: context.c,v 1.18 1999/11/08 07:36:43 brianp Exp $ */ +/* $Id: context.c,v 1.19 1999/11/11 01:22:25 brianp Exp $ */ /* * Mesa 3-D graphics library - * Version: 3.1 + * Version: 3.3 * * Copyright (C) 1999 Brian Paul All Rights Reserved. * @@ -25,8 +25,6 @@ */ -/* $XFree86: xc/lib/GL/mesa/src/context.c,v 1.4 1999/04/04 00:20:21 dawes Exp $ */ - /* * If multi-threading is enabled (-DTHREADS) then each thread has it's * own rendering context. A thread obtains the pointer to its GLcontext @@ -36,42 +34,34 @@ */ - #ifdef PC_HEADER #include "all.h" #else -#ifndef XFree86Server -#include <assert.h> -#include <math.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#else -#include "GL/xf86glx.h" -#endif +#include "glheader.h" #include "accum.h" #include "alphabuf.h" -#include "api.h" #include "clip.h" #include "context.h" #include "cva.h" #include "depth.h" +#include "dispatch.h" #include "dlist.h" #include "eval.h" #include "enums.h" #include "extensions.h" #include "fog.h" +#include "glapi.h" #include "hash.h" #include "light.h" #include "lines.h" #include "dlist.h" #include "macros.h" #include "matrix.h" +#include "mem.h" #include "mmath.h" #include "pb.h" #include "pipeline.h" #include "points.h" -#include "pointers.h" #include "quads.h" #include "shade.h" #include "simple_list.h" @@ -95,40 +85,6 @@ #endif -/* - * Memory allocation functions. Called via the MALLOC, CALLOC and - * FREE macros when DEBUG symbol is defined. - * You might want to set breakpoints on these functions or plug in - * other memory allocation functions. The Mesa sources should only - * use the MALLOC and FREE macros (which could also be overriden). - * - * XXX these functions should probably go into a new glmemory.c file. - */ - -/* - * Allocate memory (uninitialized) - */ -void *gl_malloc(size_t bytes) -{ - return malloc(bytes); -} - -/* - * Allocate memory and initialize to zero. - */ -void *gl_calloc(size_t bytes) -{ - return calloc(1, bytes); -} - -/* - * Free memory - */ -void gl_free(void *ptr) -{ - free(ptr); -} - /**********************************************************************/ /***** Context and Thread management *****/ @@ -157,7 +113,7 @@ static void set_thread_context( GLcontext *ctx ) { #else /* One Current Context pointer for all threads in the address space */ -GLcontext *CC = NULL; +GLcontext *_mesa_current_context = NULL; struct immediate *CURRENT_INPUT = NULL; #endif /*THREADS*/ @@ -578,7 +534,6 @@ static void init_1d_map( struct gl_1d_map *map, int n, const float *initial ) for (i=0;i<n;i++) map->Points[i] = initial[i]; } - map->Retain = GL_FALSE; } @@ -597,10 +552,20 @@ static void init_2d_map( struct gl_2d_map *map, int n, const float *initial ) for (i=0;i<n;i++) map->Points[i] = initial[i]; } - map->Retain = GL_FALSE; } +static void init_palette( struct gl_palette *p ) +{ + p->Table[0] = 255; + p->Table[1] = 255; + p->Table[2] = 255; + p->Table[3] = 255; + p->Size = 1; + p->IntFormat = GL_RGBA; + p->Format = GL_RGBA; +} + /* * Initialize a gl_context structure to default values. @@ -929,14 +894,7 @@ static void initialize_context( GLcontext *ctx ) for (i=0; i<MAX_TEXTURE_UNITS; i++) init_texture_unit( ctx, i ); - ctx->Texture.SharedPalette = GL_FALSE; - ctx->Texture.Palette[0] = 255; - ctx->Texture.Palette[1] = 255; - ctx->Texture.Palette[2] = 255; - ctx->Texture.Palette[3] = 255; - ctx->Texture.PaletteSize = 1; - ctx->Texture.PaletteIntFormat = GL_RGBA; - ctx->Texture.PaletteFormat = GL_RGBA; + init_palette(&ctx->Texture.Palette); /* Transformation group */ ctx->Transform.MatrixMode = GL_MODELVIEW; @@ -1331,13 +1289,10 @@ GLcontext *gl_create_context( GLvisual *visual, ctx->Driver.ReadDepthSpanFloat = gl_read_depth_span_float; ctx->Driver.ReadDepthSpanInt = gl_read_depth_span_int; - - #ifdef PROFILE init_timings( ctx ); #endif -#ifdef GL_VERSION_1_1 if (!alloc_proxy_textures(ctx)) { free_shared_state(ctx, ctx->Shared); FREE(ctx->VB); @@ -1345,10 +1300,11 @@ GLcontext *gl_create_context( GLvisual *visual, FREE(ctx); return NULL; } -#endif - gl_init_api_function_pointers( ctx ); - ctx->API = ctx->Exec; /* GL_EXECUTE is default */ + /* setup API dispatch tables */ + _mesa_init_exec_table( &ctx->Exec ); + _mesa_init_dlist_table( &ctx->Save ); + ctx->CurrentDispatch = &ctx->Exec; return ctx; } @@ -1462,8 +1418,8 @@ void gl_destroy_context( GLcontext *ctx ) FREE( (void *) ctx ); #ifndef THREADS - if (ctx==CC) { - CC = NULL; + if (ctx == _mesa_current_context) { + _mesa_current_context = NULL; CURRENT_INPUT = NULL; } #endif @@ -1532,37 +1488,42 @@ void gl_destroy_framebuffer( GLframebuffer *buffer ) /* * Set the current context, binding the given frame buffer to the context. */ -void gl_make_current( GLcontext *ctx, GLframebuffer *buffer ) +void gl_make_current( GLcontext *newCtx, GLframebuffer *buffer ) { - GET_CONTEXT; + GET_CURRENT_CONTEXT(oldCtx); /* Flush the old context */ - if (CC) { - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(CC, "gl_make_current"); + if (oldCtx) { + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(oldCtx, "gl_make_current"); } #ifdef THREADS /* TODO: unbind old buffer from context? */ - set_thread_context( ctx ); + set_thread_context( newCtx ); #else - if (CC && CC->Buffer) { + if (oldCtx && oldCtx->Buffer) { /* unbind frame buffer from context */ - CC->Buffer = NULL; + oldCtx->Buffer = NULL; } - CC = ctx; - if (ctx) { - SET_IMMEDIATE(ctx, ctx->input); + _mesa_current_context = newCtx; + if (newCtx) { + SET_IMMEDIATE(newCtx, newCtx->input); } #endif + if (newCtx) + _glapi_set_dispatch(newCtx->CurrentDispatch); + else + _glapi_set_dispatch(NULL); /* none current */ + if (MESA_VERBOSE) fprintf(stderr, "gl_make_current()\n"); - if (ctx && buffer) { - /* TODO: check if ctx and buffer's visual match??? */ - ctx->Buffer = buffer; /* Bind the frame buffer to the context */ - ctx->NewState = NEW_ALL; /* just to be safe */ - gl_update_state( ctx ); + if (newCtx && buffer) { + /* TODO: check if newCtx and buffer's visual match??? */ + newCtx->Buffer = buffer; /* Bind the frame buffer to the context */ + newCtx->NewState = NEW_ALL; /* just to be safe */ + gl_update_state( newCtx ); } } @@ -1575,7 +1536,7 @@ GLcontext *gl_get_current_context( void ) #ifdef THREADS return gl_get_thread_context(); #else - return CC; + return _mesa_current_context; #endif } @@ -1659,27 +1620,74 @@ void gl_copy_context( const GLcontext *src, GLcontext *dst, GLuint mask ) } +/* + * This should be called by device drivers just before they do a + * swapbuffers. Any pending rendering commands will be executed. + */ +void +_mesa_swapbuffers(GLcontext *ctx) +{ + FLUSH_VB( ctx, "swap buffers" ); +} + /* - * Someday a GLS library or OpenGL-like debugger may call this function - * to register it's own set of API entry points. - * Input: ctx - the context to set API pointers for - * api - if NULL, restore original API pointers - * else, set API function table to this table. + * Return pointer to this context's current API dispatch table. + * It'll either be the immediate-mode execute dispatcher or the + * display list compile dispatcher. */ -void gl_set_api_table( GLcontext *ctx, const struct gl_api_table *api ) +struct _glapi_table * +_mesa_get_dispatch(GLcontext *ctx) +{ + return ctx->CurrentDispatch; +} + + + +void +_mesa_ResizeBuffersMESA( void ) { - if (api) { - MEMCPY( &ctx->API, api, sizeof(struct gl_api_table) ); + GET_CURRENT_CONTEXT(ctx); + + GLuint buf_width, buf_height; + + if (MESA_VERBOSE & VERBOSE_API) + fprintf(stderr, "glResizeBuffersMESA\n"); + + /* ask device driver for size of output buffer */ + (*ctx->Driver.GetBufferSize)( ctx, &buf_width, &buf_height ); + + /* see if size of device driver's color buffer (window) has changed */ + if (ctx->Buffer->Width == (GLint) buf_width && + ctx->Buffer->Height == (GLint) buf_height) + return; + + ctx->NewState |= NEW_RASTER_OPS; /* to update scissor / window bounds */ + + /* save buffer size */ + ctx->Buffer->Width = buf_width; + ctx->Buffer->Height = buf_height; + + /* Reallocate other buffers if needed. */ + if (ctx->Visual->DepthBits>0) { + /* reallocate depth buffer */ + (*ctx->Driver.AllocDepthBuffer)( ctx ); } - else { - MEMCPY( &ctx->API, &ctx->Exec, sizeof(struct gl_api_table) ); + if (ctx->Visual->StencilBits>0) { + /* reallocate stencil buffer */ + gl_alloc_stencil_buffer( ctx ); + } + if (ctx->Visual->AccumBits>0) { + /* reallocate accum buffer */ + gl_alloc_accum_buffer( ctx ); + } + if (ctx->Visual->SoftwareAlpha) { + gl_alloc_alpha_buffers( ctx ); } } - /**********************************************************************/ /***** Miscellaneous functions *****/ /**********************************************************************/ @@ -1801,66 +1809,6 @@ void gl_error( GLcontext *ctx, GLenum error, const char *s ) -/* - * Execute a glGetError command - */ -GLenum gl_GetError( GLcontext *ctx ) -{ - GLenum e = ctx->ErrorValue; - - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL( ctx, "glGetError", (GLenum) 0); - - if (MESA_VERBOSE & VERBOSE_API) - fprintf(stderr, "glGetError <-- %s\n", gl_lookup_enum_by_nr(e)); - - ctx->ErrorValue = (GLenum) GL_NO_ERROR; - return e; -} - - - -void gl_ResizeBuffersMESA( GLcontext *ctx ) -{ - GLuint buf_width, buf_height; - - if (MESA_VERBOSE & VERBOSE_API) - fprintf(stderr, "glResizeBuffersMESA\n"); - - /* ask device driver for size of output buffer */ - (*ctx->Driver.GetBufferSize)( ctx, &buf_width, &buf_height ); - - /* see if size of device driver's color buffer (window) has changed */ - if (ctx->Buffer->Width == (GLint) buf_width && - ctx->Buffer->Height == (GLint) buf_height) - return; - - ctx->NewState |= NEW_RASTER_OPS; /* to update scissor / window bounds */ - - /* save buffer size */ - ctx->Buffer->Width = buf_width; - ctx->Buffer->Height = buf_height; - - /* Reallocate other buffers if needed. */ - if (ctx->Visual->DepthBits>0) { - /* reallocate depth buffer */ - (*ctx->Driver.AllocDepthBuffer)( ctx ); - } - if (ctx->Visual->StencilBits>0) { - /* reallocate stencil buffer */ - gl_alloc_stencil_buffer( ctx ); - } - if (ctx->Visual->AccumBits>0) { - /* reallocate accum buffer */ - gl_alloc_accum_buffer( ctx ); - } - if (ctx->Visual->SoftwareAlpha) { - gl_alloc_alpha_buffers( ctx ); - } -} - - - - /**********************************************************************/ /***** State update logic *****/ /**********************************************************************/ |