diff options
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_context.c | 6 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_fbo.c | 70 |
2 files changed, 74 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c index c4a24d73972..3a4e652ae5e 100644 --- a/src/mesa/drivers/dri/intel/intel_context.c +++ b/src/mesa/drivers/dri/intel/intel_context.c @@ -84,6 +84,7 @@ int INTEL_DEBUG = (0); #define need_GL_EXT_cull_vertex #define need_GL_EXT_fog_coord #define need_GL_EXT_framebuffer_object +#define need_GL_EXT_framebuffer_blit #define need_GL_EXT_multi_draw_arrays #define need_GL_EXT_point_parameters #define need_GL_EXT_secondary_color @@ -421,8 +422,9 @@ static const struct dri_extension arb_oq_extensions[] = { }; static const struct dri_extension ttm_extensions[] = { - { "GL_ARB_pixel_buffer_object", NULL }, - { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions }, + { "GL_ARB_pixel_buffer_object", NULL }, + { "GL_EXT_framebuffer_blit", GL_EXT_framebuffer_blit_functions }, + { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions }, { NULL, NULL } }; diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c b/src/mesa/drivers/dri/intel/intel_fbo.c index 47217f756ca..05847ee5fea 100644 --- a/src/mesa/drivers/dri/intel/intel_fbo.c +++ b/src/mesa/drivers/dri/intel/intel_fbo.c @@ -27,6 +27,7 @@ #include "main/imports.h" +#include "main/macros.h" #include "main/mtypes.h" #include "main/fbobject.h" #include "main/framebuffer.h" @@ -637,6 +638,74 @@ intel_validate_framebuffer(GLcontext *ctx, struct gl_framebuffer *fb) /** + * Called from glBlitFramebuffer(). + * For now, we're doing an approximation with glCopyPixels(). + * XXX we need to bypass all the per-fragment operations, except scissor. + */ +static void +intel_blit_framebuffer(GLcontext *ctx, + GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, + GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, + GLbitfield mask, GLenum filter) +{ + const GLfloat xZoomSave = ctx->Pixel.ZoomX; + const GLfloat yZoomSave = ctx->Pixel.ZoomY; + GLsizei width, height; + GLfloat xFlip = 1.0F, yFlip = 1.0F; + + if (srcX1 < srcX0) { + GLint tmp = srcX1; + srcX1 = srcX0; + srcX0 = tmp; + xFlip = -1.0F; + } + + if (srcY1 < srcY0) { + GLint tmp = srcY1; + srcY1 = srcY0; + srcY0 = tmp; + yFlip = -1.0F; + } + + width = srcX1 - srcX0; + height = srcY1 - srcY0; + + ctx->Pixel.ZoomX = xFlip * (dstX1 - dstX0) / (srcX1 - srcY0); + ctx->Pixel.ZoomY = yFlip * (dstY1 - dstY0) / (srcY1 - srcY0); + + if (ctx->Pixel.ZoomX < 0.0F) { + dstX0 = MAX2(dstX0, dstX1); + } + else { + dstX0 = MIN2(dstX0, dstX1); + } + + if (ctx->Pixel.ZoomY < 0.0F) { + dstY0 = MAX2(dstY0, dstY1); + } + else { + dstY0 = MIN2(dstY0, dstY1); + } + + if (mask & GL_COLOR_BUFFER_BIT) { + ctx->Driver.CopyPixels(ctx, srcX0, srcY0, width, height, + dstX0, dstY0, GL_COLOR); + } + if (mask & GL_DEPTH_BUFFER_BIT) { + ctx->Driver.CopyPixels(ctx, srcX0, srcY0, width, height, + dstX0, dstY0, GL_DEPTH); + } + if (mask & GL_STENCIL_BUFFER_BIT) { + ctx->Driver.CopyPixels(ctx, srcX0, srcY0, width, height, + dstX0, dstY0, GL_STENCIL); + } + + ctx->Pixel.ZoomX = xZoomSave; + ctx->Pixel.ZoomY = yZoomSave; +} + + +/** * Do one-time context initializations related to GL_EXT_framebuffer_object. * Hook in device driver functions. */ @@ -651,4 +720,5 @@ intel_fbo_init(struct intel_context *intel) intel->ctx.Driver.FinishRenderTexture = intel_finish_render_texture; intel->ctx.Driver.ResizeBuffers = intel_resize_buffers; intel->ctx.Driver.ValidateFramebuffer = intel_validate_framebuffer; + intel->ctx.Driver.BlitFramebuffer = intel_blit_framebuffer; } |