| /************************************************************************** |
| |
| Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved. |
| Copyright 2000, 2001 ATI Technologies Inc., Ontario, Canada, and |
| VA Linux Systems Inc., Fremont, California. |
| |
| The Weather Channel (TM) funded Tungsten Graphics to develop the |
| initial release of the Radeon 8500 driver under the XFree86 license. |
| This notice must be preserved. |
| |
| All Rights Reserved. |
| |
| Permission is hereby granted, free of charge, to any person obtaining |
| a copy of this software and associated documentation files (the |
| "Software"), to deal in the Software without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sublicense, and/or sell copies of the Software, and to |
| permit persons to whom the Software is furnished to do so, subject to |
| the following conditions: |
| |
| The above copyright notice and this permission notice (including the |
| next paragraph) shall be included in all copies or substantial |
| portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE |
| LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| |
| **************************************************************************/ |
| |
| /* |
| * Authors: |
| * Kevin E. Martin <martin@valinux.com> |
| * Gareth Hughes <gareth@valinux.com> |
| * Keith Whitwell <keith@tungstengraphics.com> |
| * |
| */ |
| |
| #include "main/glheader.h" |
| #include "main/texformat.h" |
| #include "main/renderbuffer.h" |
| #include "main/samplerobj.h" |
| #include "swrast/swrast.h" |
| #include "swrast/s_renderbuffer.h" |
| |
| #include "radeon_common.h" |
| #include "radeon_span.h" |
| |
| |
| static void |
| radeon_renderbuffer_map(struct gl_context *ctx, struct gl_renderbuffer *rb) |
| { |
| struct radeon_renderbuffer *rrb = radeon_renderbuffer(rb); |
| GLubyte *map; |
| int stride; |
| |
| if (!rb || !rrb) |
| return; |
| |
| ctx->Driver.MapRenderbuffer(ctx, rb, 0, 0, rb->Width, rb->Height, |
| GL_MAP_READ_BIT | GL_MAP_WRITE_BIT, |
| &map, &stride); |
| |
| rrb->base.Map = map; |
| rrb->base.RowStride = stride; |
| /* No floating point color buffers, use GLubytes */ |
| rrb->base.ColorType = GL_UNSIGNED_BYTE; |
| } |
| |
| static void |
| radeon_renderbuffer_unmap(struct gl_context *ctx, struct gl_renderbuffer *rb) |
| { |
| struct radeon_renderbuffer *rrb = radeon_renderbuffer(rb); |
| if (!rb || !rrb) |
| return; |
| |
| ctx->Driver.UnmapRenderbuffer(ctx, rb); |
| |
| rrb->base.Map = NULL; |
| rrb->base.RowStride = 0; |
| } |
| |
| static void |
| radeon_map_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) |
| { |
| GLuint i; |
| |
| radeon_print(RADEON_MEMORY, RADEON_TRACE, |
| "%s( %p , fb %p )\n", |
| __func__, ctx, fb); |
| |
| /* check for render to textures */ |
| for (i = 0; i < BUFFER_COUNT; i++) |
| radeon_renderbuffer_map(ctx, fb->Attachment[i].Renderbuffer); |
| |
| radeon_check_front_buffer_rendering(ctx); |
| } |
| |
| static void |
| radeon_unmap_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) |
| { |
| GLuint i; |
| |
| radeon_print(RADEON_MEMORY, RADEON_TRACE, |
| "%s( %p , fb %p)\n", |
| __func__, ctx, fb); |
| |
| /* check for render to textures */ |
| for (i = 0; i < BUFFER_COUNT; i++) |
| radeon_renderbuffer_unmap(ctx, fb->Attachment[i].Renderbuffer); |
| |
| radeon_check_front_buffer_rendering(ctx); |
| } |
| |
| static void radeonSpanRenderStart(struct gl_context * ctx) |
| { |
| radeonContextPtr rmesa = RADEON_CONTEXT(ctx); |
| int i; |
| |
| radeon_firevertices(rmesa); |
| |
| for (i = 0; i < ctx->Const.MaxTextureImageUnits; i++) { |
| if (ctx->Texture.Unit[i]._ReallyEnabled) { |
| radeon_validate_texture_miptree(ctx, _mesa_get_samplerobj(ctx, i), |
| ctx->Texture.Unit[i]._Current); |
| radeon_swrast_map_texture_images(ctx, ctx->Texture.Unit[i]._Current); |
| } |
| } |
| |
| radeon_map_framebuffer(ctx, ctx->DrawBuffer); |
| if (ctx->ReadBuffer != ctx->DrawBuffer) |
| radeon_map_framebuffer(ctx, ctx->ReadBuffer); |
| } |
| |
| static void radeonSpanRenderFinish(struct gl_context * ctx) |
| { |
| int i; |
| |
| _swrast_flush(ctx); |
| |
| for (i = 0; i < ctx->Const.MaxTextureImageUnits; i++) |
| if (ctx->Texture.Unit[i]._ReallyEnabled) |
| radeon_swrast_unmap_texture_images(ctx, ctx->Texture.Unit[i]._Current); |
| |
| radeon_unmap_framebuffer(ctx, ctx->DrawBuffer); |
| if (ctx->ReadBuffer != ctx->DrawBuffer) |
| radeon_unmap_framebuffer(ctx, ctx->ReadBuffer); |
| } |
| |
| void radeonInitSpanFuncs(struct gl_context * ctx) |
| { |
| struct swrast_device_driver *swdd = |
| _swrast_GetDeviceDriverReference(ctx); |
| swdd->SpanRenderStart = radeonSpanRenderStart; |
| swdd->SpanRenderFinish = radeonSpanRenderFinish; |
| } |
| |