diff options
author | Brian Paul <brian.paul@tungstengraphics.com> | 2008-06-09 15:04:31 -0600 |
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committer | Brian Paul <brian.paul@tungstengraphics.com> | 2008-06-09 15:04:31 -0600 |
commit | 9091015a9782ad15e58540a8fd61df83ea2bfe31 (patch) | |
tree | 76bd84942c1b557ab2c21585bf9de2fb35a0e7d2 /src/mesa/main/framebuffer.c | |
parent | eade430682516a445a2bf765165362dad19594f0 (diff) |
mesa: refactor: move _mesa_resizebuffers(), _mesa_ResizeBuffersMESA() to framebuffer.c
Diffstat (limited to 'src/mesa/main/framebuffer.c')
-rw-r--r-- | src/mesa/main/framebuffer.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c index 894d99afd2..96f1b30c9b 100644 --- a/src/mesa/main/framebuffer.c +++ b/src/mesa/main/framebuffer.c @@ -338,6 +338,84 @@ _mesa_resize_framebuffer(GLcontext *ctx, struct gl_framebuffer *fb, } + +/** + * XXX THIS IS OBSOLETE - drivers should take care of detecting window + * size changes and act accordingly, likely calling _mesa_resize_framebuffer(). + * + * GL_MESA_resize_buffers extension. + * + * When this function is called, we'll ask the window system how large + * the current window is. If it's a new size, we'll call the driver's + * ResizeBuffers function. The driver will then resize its color buffers + * as needed, and maybe call the swrast's routine for reallocating + * swrast-managed depth/stencil/accum/etc buffers. + * \note This function should only be called through the GL API, not + * from device drivers (as was done in the past). + */ +void +_mesa_resizebuffers( GLcontext *ctx ) +{ + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx ); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glResizeBuffersMESA\n"); + + if (!ctx->Driver.GetBufferSize) { + return; + } + + if (ctx->WinSysDrawBuffer) { + GLuint newWidth, newHeight; + GLframebuffer *buffer = ctx->WinSysDrawBuffer; + + assert(buffer->Name == 0); + + /* ask device driver for size of output buffer */ + ctx->Driver.GetBufferSize( buffer, &newWidth, &newHeight ); + + /* see if size of device driver's color buffer (window) has changed */ + if (buffer->Width != newWidth || buffer->Height != newHeight) { + if (ctx->Driver.ResizeBuffers) + ctx->Driver.ResizeBuffers(ctx, buffer, newWidth, newHeight ); + } + } + + if (ctx->WinSysReadBuffer + && ctx->WinSysReadBuffer != ctx->WinSysDrawBuffer) { + GLuint newWidth, newHeight; + GLframebuffer *buffer = ctx->WinSysReadBuffer; + + assert(buffer->Name == 0); + + /* ask device driver for size of read buffer */ + ctx->Driver.GetBufferSize( buffer, &newWidth, &newHeight ); + + /* see if size of device driver's color buffer (window) has changed */ + if (buffer->Width != newWidth || buffer->Height != newHeight) { + if (ctx->Driver.ResizeBuffers) + ctx->Driver.ResizeBuffers(ctx, buffer, newWidth, newHeight ); + } + } + + ctx->NewState |= _NEW_BUFFERS; /* to update scissor / window bounds */ +} + + +/* + * XXX THIS IS OBSOLETE + */ +void GLAPIENTRY +_mesa_ResizeBuffersMESA( void ) +{ + GET_CURRENT_CONTEXT(ctx); + + if (ctx->Extensions.MESA_resize_buffers) + _mesa_resizebuffers( ctx ); +} + + + /** * Examine all the framebuffer's renderbuffers to update the Width/Height * fields of the framebuffer. If we have renderbuffers with different |