diff options
| -rw-r--r-- | src/mesa/main/context.c | 41 | ||||
| -rw-r--r-- | src/mesa/main/context.h | 3 | ||||
| -rw-r--r-- | src/mesa/main/mtypes.h | 2 | ||||
| -rw-r--r-- | src/mesa/state_tracker/st_context.c | 15 | ||||
| -rw-r--r-- | src/mesa/state_tracker/st_framebuffer.c | 11 |
5 files changed, 38 insertions, 34 deletions
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c index a947f69632f..0a4c9acdfe9 100644 --- a/src/mesa/main/context.c +++ b/src/mesa/main/context.c @@ -1256,6 +1256,24 @@ initialize_framebuffer_size(GLcontext *ctx, GLframebuffer *fb) /** + * Check if the viewport/scissor size has not yet been initialized. + * Initialize the size if the given width and height are non-zero. + */ +void +_mesa_check_init_viewport(GLcontext *ctx, GLuint width, GLuint height) +{ + if (!ctx->ViewportInitialized && width > 0 && height > 0) { + /* Note: set flag here, before calling _mesa_set_viewport(), to prevent + * potential infinite recursion. + */ + ctx->ViewportInitialized = GL_TRUE; + _mesa_set_viewport(ctx, 0, 0, width, height); + _mesa_set_scissor(ctx, 0, 0, width, height); + } +} + + +/** * Bind the given context to the given drawBuffer and readBuffer and * make it the current context for the calling thread. * We'll render into the drawBuffer and read pixels from the @@ -1372,25 +1390,24 @@ _mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer, ASSERT(drawBuffer->Height > 0); #endif - if (newCtx->FirstTimeCurrent) { - /* set initial viewport and scissor size now */ - _mesa_set_viewport(newCtx, 0, 0, - drawBuffer->Width, drawBuffer->Height); - _mesa_set_scissor(newCtx, 0, 0, - drawBuffer->Width, drawBuffer->Height ); - check_context_limits(newCtx); + if (drawBuffer) { + _mesa_check_init_viewport(newCtx, + drawBuffer->Width, drawBuffer->Height); } } - /* We can use this to help debug user's problems. Tell them to set - * the MESA_INFO env variable before running their app. Then the - * first time each context is made current we'll print some useful - * information. - */ if (newCtx->FirstTimeCurrent) { + check_context_limits(newCtx); + + /* We can use this to help debug user's problems. Tell them to set + * the MESA_INFO env variable before running their app. Then the + * first time each context is made current we'll print some useful + * information. + */ if (_mesa_getenv("MESA_INFO")) { _mesa_print_info(); } + newCtx->FirstTimeCurrent = GL_FALSE; } } diff --git a/src/mesa/main/context.h b/src/mesa/main/context.h index 6b3e1b2b973..0531ae8ee86 100644 --- a/src/mesa/main/context.h +++ b/src/mesa/main/context.h @@ -130,6 +130,9 @@ extern void _mesa_copy_context(const GLcontext *src, GLcontext *dst, GLuint mask); +extern void +_mesa_check_init_viewport(GLcontext *ctx, GLuint width, GLuint height); + extern GLboolean _mesa_make_current( GLcontext *ctx, GLframebuffer *drawBuffer, GLframebuffer *readBuffer ); diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index 50dc2def87f..8872c8963f5 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -2947,6 +2947,8 @@ struct __GLcontextRec GLenum RenderMode; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */ GLbitfield NewState; /**< bitwise-or of _NEW_* flags */ + GLboolean ViewportInitialized; /**< has viewport size been initialized? */ + GLbitfield varying_vp_inputs; /**< mask of VERT_BIT_* flags */ /** \name Derived state */ diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c index 92ddffc0148..8514b6b3756 100644 --- a/src/mesa/state_tracker/st_context.c +++ b/src/mesa/state_tracker/st_context.c @@ -274,20 +274,11 @@ st_make_current(struct st_context *st, _glapi_check_multithread(); if (st) { - GLboolean firstTime = st->ctx->FirstTimeCurrent; - if(!_mesa_make_current(st->ctx, &draw->Base, &read->Base)) + if (!_mesa_make_current(st->ctx, &draw->Base, &read->Base)) return GL_FALSE; - /* Need to initialize viewport here since draw->Base->Width/Height - * will still be zero at this point. - * This could be improved, but would require rather extensive work - * elsewhere (allocate rb surface storage sooner) - */ - if (firstTime) { - GLuint w = draw->InitWidth, h = draw->InitHeight; - _mesa_set_viewport(st->ctx, 0, 0, w, h); - _mesa_set_scissor(st->ctx, 0, 0, w, h); - } + _mesa_check_init_viewport(st->ctx, draw->InitWidth, draw->InitHeight); + return GL_TRUE; } else { diff --git a/src/mesa/state_tracker/st_framebuffer.c b/src/mesa/state_tracker/st_framebuffer.c index 331575660d3..33a90ea7db6 100644 --- a/src/mesa/state_tracker/st_framebuffer.c +++ b/src/mesa/state_tracker/st_framebuffer.c @@ -134,16 +134,7 @@ void st_resize_framebuffer( struct st_framebuffer *stfb, if (stfb->Base.Width != width || stfb->Base.Height != height) { GET_CURRENT_CONTEXT(ctx); if (ctx) { - if (stfb->InitWidth == 0 && stfb->InitHeight == 0) { - /* didn't have a valid size until now */ - stfb->InitWidth = width; - stfb->InitHeight = height; - if (ctx->Viewport.Width <= 1) { - /* set context's initial viewport/scissor size */ - _mesa_set_viewport(ctx, 0, 0, width, height); - _mesa_set_scissor(ctx, 0, 0, width, height); - } - } + _mesa_check_init_viewport(ctx, width, height); _mesa_resize_framebuffer(ctx, &stfb->Base, width, height); |