diff options
Diffstat (limited to 'src/mesa/drivers/dri/i915/intel_fbo.c')
l---------[-rw-r--r--] | src/mesa/drivers/dri/i915/intel_fbo.c | 688 |
1 files changed, 1 insertions, 687 deletions
diff --git a/src/mesa/drivers/dri/i915/intel_fbo.c b/src/mesa/drivers/dri/i915/intel_fbo.c index 6f99f40..a19f86d 100644..120000 --- a/src/mesa/drivers/dri/i915/intel_fbo.c +++ b/src/mesa/drivers/dri/i915/intel_fbo.c @@ -1,687 +1 @@ -/************************************************************************** - * - * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. - * 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, sub license, 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 NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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. - * - **************************************************************************/ - - -#include "imports.h" -#include "mtypes.h" -#include "fbobject.h" -#include "framebuffer.h" -#include "renderbuffer.h" -#include "context.h" -#include "texformat.h" -#include "texrender.h" - -#include "intel_context.h" -#include "intel_buffers.h" -#include "intel_depthstencil.h" -#include "intel_fbo.h" -#include "intel_mipmap_tree.h" -#include "intel_regions.h" -#include "intel_span.h" - - -#define FILE_DEBUG_FLAG DEBUG_FBO - -#define INTEL_RB_CLASS 0x12345678 - - -/* XXX FBO: move this to intel_context.h (inlined) */ -/** - * Return a gl_renderbuffer ptr casted to intel_renderbuffer. - * NULL will be returned if the rb isn't really an intel_renderbuffer. - * This is determiend by checking the ClassID. - */ -struct intel_renderbuffer * -intel_renderbuffer(struct gl_renderbuffer *rb) -{ - struct intel_renderbuffer *irb = (struct intel_renderbuffer *) rb; - if (irb && irb->Base.ClassID == INTEL_RB_CLASS) { - /*_mesa_warning(NULL, "Returning non-intel Rb\n");*/ - return irb; - } - else - return NULL; -} - - -struct intel_renderbuffer * -intel_get_renderbuffer(struct gl_framebuffer *fb, GLuint attIndex) -{ - return intel_renderbuffer(fb->Attachment[attIndex].Renderbuffer); -} - - -void -intel_flip_renderbuffers(struct intel_framebuffer *intel_fb) -{ - int current_page = intel_fb->pf_current_page; - int next_page = (current_page + 1) % intel_fb->pf_num_pages; - struct gl_renderbuffer *tmp_rb; - - /* Exchange renderbuffers if necessary but make sure their reference counts - * are preserved. - */ - if (intel_fb->color_rb[current_page] && - intel_fb->Base.Attachment[BUFFER_FRONT_LEFT].Renderbuffer != - &intel_fb->color_rb[current_page]->Base) { - tmp_rb = NULL; - _mesa_reference_renderbuffer(&tmp_rb, - intel_fb->Base.Attachment[BUFFER_FRONT_LEFT].Renderbuffer); - tmp_rb = &intel_fb->color_rb[current_page]->Base; - _mesa_reference_renderbuffer( - &intel_fb->Base.Attachment[BUFFER_FRONT_LEFT].Renderbuffer, tmp_rb); - _mesa_reference_renderbuffer(&tmp_rb, NULL); - } - - if (intel_fb->color_rb[next_page] && - intel_fb->Base.Attachment[BUFFER_BACK_LEFT].Renderbuffer != - &intel_fb->color_rb[next_page]->Base) { - tmp_rb = NULL; - _mesa_reference_renderbuffer(&tmp_rb, - intel_fb->Base.Attachment[BUFFER_BACK_LEFT].Renderbuffer); - tmp_rb = &intel_fb->color_rb[next_page]->Base; - _mesa_reference_renderbuffer( - &intel_fb->Base.Attachment[BUFFER_BACK_LEFT].Renderbuffer, tmp_rb); - _mesa_reference_renderbuffer(&tmp_rb, NULL); - } -} - - -struct intel_region * -intel_get_rb_region(struct gl_framebuffer *fb, GLuint attIndex) -{ - struct intel_renderbuffer *irb = intel_get_renderbuffer(fb, attIndex); - - if (irb) - return irb->region; - else - return NULL; -} - - - -/** - * Create a new framebuffer object. - */ -static struct gl_framebuffer * -intel_new_framebuffer(GLcontext * ctx, GLuint name) -{ - /* Only drawable state in intel_framebuffer at this time, just use Mesa's - * class - */ - return _mesa_new_framebuffer(ctx, name); -} - - -static void -intel_delete_renderbuffer(struct gl_renderbuffer *rb) -{ - GET_CURRENT_CONTEXT(ctx); - struct intel_context *intel = intel_context(ctx); - struct intel_renderbuffer *irb = intel_renderbuffer(rb); - - ASSERT(irb); - - if (irb->PairedStencil || irb->PairedDepth) { - intel_unpair_depth_stencil(ctx, irb); - } - - if (intel && irb->region) { - intel_region_release(&irb->region); - } - - _mesa_free(irb); -} - - - -/** - * Return a pointer to a specific pixel in a renderbuffer. - */ -static void * -intel_get_pointer(GLcontext * ctx, struct gl_renderbuffer *rb, - GLint x, GLint y) -{ - /* By returning NULL we force all software rendering to go through - * the span routines. - */ - return NULL; -} - - - -/** - * Called via glRenderbufferStorageEXT() to set the format and allocate - * storage for a user-created renderbuffer. - */ -static GLboolean -intel_alloc_renderbuffer_storage(GLcontext * ctx, struct gl_renderbuffer *rb, - GLenum internalFormat, - GLuint width, GLuint height) -{ - struct intel_context *intel = intel_context(ctx); - struct intel_renderbuffer *irb = intel_renderbuffer(rb); - GLboolean softwareBuffer = GL_FALSE; - int cpp; - - ASSERT(rb->Name != 0); - - switch (internalFormat) { - case GL_R3_G3_B2: - case GL_RGB4: - case GL_RGB5: - rb->_ActualFormat = GL_RGB5; - rb->DataType = GL_UNSIGNED_BYTE; - rb->RedBits = 5; - rb->GreenBits = 6; - rb->BlueBits = 5; - cpp = 2; - break; - case GL_RGB: - case GL_RGB8: - case GL_RGB10: - case GL_RGB12: - case GL_RGB16: - case GL_RGBA: - case GL_RGBA2: - case GL_RGBA4: - case GL_RGB5_A1: - case GL_RGBA8: - case GL_RGB10_A2: - case GL_RGBA12: - case GL_RGBA16: - rb->_ActualFormat = GL_RGBA8; - rb->DataType = GL_UNSIGNED_BYTE; - rb->RedBits = 8; - rb->GreenBits = 8; - rb->BlueBits = 8; - rb->AlphaBits = 8; - cpp = 4; - break; - case GL_STENCIL_INDEX: - case GL_STENCIL_INDEX1_EXT: - case GL_STENCIL_INDEX4_EXT: - case GL_STENCIL_INDEX8_EXT: - case GL_STENCIL_INDEX16_EXT: - /* alloc a depth+stencil buffer */ - rb->_ActualFormat = GL_DEPTH24_STENCIL8_EXT; - rb->DataType = GL_UNSIGNED_INT_24_8_EXT; - rb->StencilBits = 8; - cpp = 4; - break; - case GL_DEPTH_COMPONENT16: - rb->_ActualFormat = GL_DEPTH_COMPONENT16; - rb->DataType = GL_UNSIGNED_SHORT; - rb->DepthBits = 16; - cpp = 2; - break; - case GL_DEPTH_COMPONENT: - case GL_DEPTH_COMPONENT24: - case GL_DEPTH_COMPONENT32: - rb->_ActualFormat = GL_DEPTH24_STENCIL8_EXT; - rb->DataType = GL_UNSIGNED_INT_24_8_EXT; - rb->DepthBits = 24; - cpp = 4; - break; - case GL_DEPTH_STENCIL_EXT: - case GL_DEPTH24_STENCIL8_EXT: - rb->_ActualFormat = GL_DEPTH24_STENCIL8_EXT; - rb->DataType = GL_UNSIGNED_INT_24_8_EXT; - rb->DepthBits = 24; - rb->StencilBits = 8; - cpp = 4; - break; - default: - _mesa_problem(ctx, - "Unexpected format in intel_alloc_renderbuffer_storage"); - return GL_FALSE; - } - - intelFlush(ctx); - - /* free old region */ - if (irb->region) { - intel_region_release(&irb->region); - } - - /* allocate new memory region/renderbuffer */ - if (softwareBuffer) { - return _mesa_soft_renderbuffer_storage(ctx, rb, internalFormat, - width, height); - } - else { - /* Choose a pitch to match hardware requirements: - */ - GLuint pitch = ((cpp * width + 63) & ~63) / cpp; - - /* alloc hardware renderbuffer */ - DBG("Allocating %d x %d Intel RBO (pitch %d)\n", width, - height, pitch); - - irb->region = intel_region_alloc(intel->intelScreen, cpp, pitch, height); - if (!irb->region) - return GL_FALSE; /* out of memory? */ - - ASSERT(irb->region->buffer); - - rb->Width = width; - rb->Height = height; - - /* This sets the Get/PutRow/Value functions */ - intel_set_span_functions(&irb->Base); - - return GL_TRUE; - } -} - - - -/** - * Called for each hardware renderbuffer when a _window_ is resized. - * Just update fields. - * Not used for user-created renderbuffers! - */ -static GLboolean -intel_alloc_window_storage(GLcontext * ctx, struct gl_renderbuffer *rb, - GLenum internalFormat, GLuint width, GLuint height) -{ - ASSERT(rb->Name == 0); - rb->Width = width; - rb->Height = height; - rb->_ActualFormat = internalFormat; - - return GL_TRUE; -} - -static void -intel_resize_buffers(GLcontext *ctx, struct gl_framebuffer *fb, - GLuint width, GLuint height) -{ - struct intel_framebuffer *intel_fb = (struct intel_framebuffer*)fb; - int i; - - _mesa_resize_framebuffer(ctx, fb, width, height); - - fb->Initialized = GL_TRUE; /* XXX remove someday */ - - if (fb->Name != 0) { - return; - } - - /* Make sure all window system renderbuffers are up to date */ - for (i = 0; i < 3; i++) { - struct gl_renderbuffer *rb = &intel_fb->color_rb[i]->Base; - - /* only resize if size is changing */ - if (rb && (rb->Width != width || rb->Height != height)) { - rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height); - } - } -} - -static GLboolean -intel_nop_alloc_storage(GLcontext * ctx, struct gl_renderbuffer *rb, - GLenum internalFormat, GLuint width, GLuint height) -{ - _mesa_problem(ctx, "intel_op_alloc_storage should never be called."); - return GL_FALSE; -} - - - -/** - * Create a new intel_renderbuffer which corresponds to an on-screen window, - * not a user-created renderbuffer. - * \param width the screen width - * \param height the screen height - */ -struct intel_renderbuffer * -intel_create_renderbuffer(GLenum intFormat, GLsizei width, GLsizei height, - int offset, int pitch, int cpp, void *map) -{ - GET_CURRENT_CONTEXT(ctx); - - struct intel_renderbuffer *irb; - const GLuint name = 0; - - irb = CALLOC_STRUCT(intel_renderbuffer); - if (!irb) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "creating renderbuffer"); - return NULL; - } - - _mesa_init_renderbuffer(&irb->Base, name); - irb->Base.ClassID = INTEL_RB_CLASS; - - switch (intFormat) { - case GL_RGB5: - irb->Base._ActualFormat = GL_RGB5; - irb->Base._BaseFormat = GL_RGBA; - irb->Base.RedBits = 5; - irb->Base.GreenBits = 6; - irb->Base.BlueBits = 5; - irb->Base.DataType = GL_UNSIGNED_BYTE; - cpp = 2; - break; - case GL_RGBA8: - irb->Base._ActualFormat = GL_RGBA8; - irb->Base._BaseFormat = GL_RGBA; - irb->Base.RedBits = 8; - irb->Base.GreenBits = 8; - irb->Base.BlueBits = 8; - irb->Base.AlphaBits = 8; - irb->Base.DataType = GL_UNSIGNED_BYTE; - cpp = 4; - break; - case GL_STENCIL_INDEX8_EXT: - irb->Base._ActualFormat = GL_STENCIL_INDEX8_EXT; - irb->Base._BaseFormat = GL_STENCIL_INDEX; - irb->Base.StencilBits = 8; - irb->Base.DataType = GL_UNSIGNED_BYTE; - cpp = 1; - break; - case GL_DEPTH_COMPONENT16: - irb->Base._ActualFormat = GL_DEPTH_COMPONENT16; - irb->Base._BaseFormat = GL_DEPTH_COMPONENT; - irb->Base.DepthBits = 16; - irb->Base.DataType = GL_UNSIGNED_SHORT; - cpp = 2; - break; - case GL_DEPTH_COMPONENT24: - irb->Base._ActualFormat = GL_DEPTH24_STENCIL8_EXT; - irb->Base._BaseFormat = GL_DEPTH_COMPONENT; - irb->Base.DepthBits = 24; - irb->Base.DataType = GL_UNSIGNED_INT; - cpp = 4; - break; - case GL_DEPTH24_STENCIL8_EXT: - irb->Base._ActualFormat = GL_DEPTH24_STENCIL8_EXT; - irb->Base._BaseFormat = GL_DEPTH_STENCIL_EXT; - irb->Base.DepthBits = 24; - irb->Base.StencilBits = 8; - irb->Base.DataType = GL_UNSIGNED_INT_24_8_EXT; - cpp = 4; - break; - default: - _mesa_problem(NULL, - "Unexpected intFormat in intel_create_renderbuffer"); - return NULL; - } - - irb->Base.InternalFormat = intFormat; - - /* intel-specific methods */ - irb->Base.Delete = intel_delete_renderbuffer; - irb->Base.AllocStorage = intel_alloc_window_storage; - irb->Base.GetPointer = intel_get_pointer; - /* This sets the Get/PutRow/Value functions */ - intel_set_span_functions(&irb->Base); - - irb->pfMap = map; - irb->pfPitch = pitch / cpp; /* in pixels */ - -#if 00 - irb->region = intel_region_create_static(intel, - DRM_MM_TT, - offset, map, cpp, width, height); -#endif - - return irb; -} - - -/** - * Create a new renderbuffer object. - * Typically called via glBindRenderbufferEXT(). - */ -static struct gl_renderbuffer * -intel_new_renderbuffer(GLcontext * ctx, GLuint name) -{ - /*struct intel_context *intel = intel_context(ctx); */ - struct intel_renderbuffer *irb; - - irb = CALLOC_STRUCT(intel_renderbuffer); - if (!irb) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "creating renderbuffer"); - return NULL; - } - - _mesa_init_renderbuffer(&irb->Base, name); - irb->Base.ClassID = INTEL_RB_CLASS; - - /* intel-specific methods */ - irb->Base.Delete = intel_delete_renderbuffer; - irb->Base.AllocStorage = intel_alloc_renderbuffer_storage; - irb->Base.GetPointer = intel_get_pointer; - /* span routines set in alloc_storage function */ - - return &irb->Base; -} - - -/** - * Called via glBindFramebufferEXT(). - */ -static void -intel_bind_framebuffer(GLcontext * ctx, GLenum target, - struct gl_framebuffer *fb, struct gl_framebuffer *fbread) -{ - if (target == GL_FRAMEBUFFER_EXT || target == GL_DRAW_FRAMEBUFFER_EXT) { - intel_draw_buffer(ctx, fb); - /* Integer depth range depends on depth buffer bits */ - ctx->Driver.DepthRange(ctx, ctx->Viewport.Near, ctx->Viewport.Far); - } - else { - /* don't need to do anything if target == GL_READ_FRAMEBUFFER_EXT */ - } -} - - -/** - * Called via glFramebufferRenderbufferEXT(). - */ -static void -intel_framebuffer_renderbuffer(GLcontext * ctx, - struct gl_framebuffer *fb, - GLenum attachment, struct gl_renderbuffer *rb) -{ - DBG("Intel FramebufferRenderbuffer %u %u\n", fb->Name, rb ? rb->Name : 0); - - intelFlush(ctx); - - _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb); - intel_draw_buffer(ctx, fb); -} - - -/** - * When glFramebufferTexture[123]D is called this function sets up the - * gl_renderbuffer wrapper around the texture image. - * This will have the region info needed for hardware rendering. - */ -static struct intel_renderbuffer * -intel_wrap_texture(GLcontext * ctx, struct gl_texture_image *texImage) -{ - const GLuint name = ~0; /* not significant, but distinct for debugging */ - struct intel_renderbuffer *irb; - - /* make an intel_renderbuffer to wrap the texture image */ - irb = CALLOC_STRUCT(intel_renderbuffer); - if (!irb) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture"); - return NULL; - } - - _mesa_init_renderbuffer(&irb->Base, name); - irb->Base.ClassID = INTEL_RB_CLASS; - - if (texImage->TexFormat == &_mesa_texformat_argb8888) { - irb->Base._ActualFormat = GL_RGBA8; - irb->Base._BaseFormat = GL_RGBA; - DBG("Render to RGBA8 texture OK\n"); - } - else if (texImage->TexFormat == &_mesa_texformat_rgb565) { - irb->Base._ActualFormat = GL_RGB5; - irb->Base._BaseFormat = GL_RGB; - DBG("Render to RGB5 texture OK\n"); - } - else if (texImage->TexFormat == &_mesa_texformat_z16) { - irb->Base._ActualFormat = GL_DEPTH_COMPONENT16; - irb->Base._BaseFormat = GL_DEPTH_COMPONENT; - DBG("Render to DEPTH16 texture OK\n"); - } - else { - DBG("Render to texture BAD FORMAT %d\n", - texImage->TexFormat->MesaFormat); - _mesa_free(irb); - return NULL; - } - - irb->Base.InternalFormat = irb->Base._ActualFormat; - irb->Base.Width = texImage->Width; - irb->Base.Height = texImage->Height; - irb->Base.DataType = GL_UNSIGNED_BYTE; /* FBO XXX fix */ - irb->Base.RedBits = texImage->TexFormat->RedBits; - irb->Base.GreenBits = texImage->TexFormat->GreenBits; - irb->Base.BlueBits = texImage->TexFormat->BlueBits; - irb->Base.AlphaBits = texImage->TexFormat->AlphaBits; - irb->Base.DepthBits = texImage->TexFormat->DepthBits; - - irb->Base.Delete = intel_delete_renderbuffer; - irb->Base.AllocStorage = intel_nop_alloc_storage; - intel_set_span_functions(&irb->Base); - - irb->RenderToTexture = GL_TRUE; - - return irb; -} - - -/** - * Called by glFramebufferTexture[123]DEXT() (and other places) to - * prepare for rendering into texture memory. This might be called - * many times to choose different texture levels, cube faces, etc - * before intel_finish_render_texture() is ever called. - */ -static void -intel_render_texture(GLcontext * ctx, - struct gl_framebuffer *fb, - struct gl_renderbuffer_attachment *att) -{ - struct gl_texture_image *newImage - = att->Texture->Image[att->CubeMapFace][att->TextureLevel]; - struct intel_renderbuffer *irb = intel_renderbuffer(att->Renderbuffer); - struct intel_texture_image *intel_image; - GLuint imageOffset; - - (void) fb; - - ASSERT(newImage); - - if (!irb) { - irb = intel_wrap_texture(ctx, newImage); - if (irb) { - /* bind the wrapper to the attachment point */ - _mesa_reference_renderbuffer(&att->Renderbuffer, &irb->Base); - } - else { - /* fallback to software rendering */ - _mesa_render_texture(ctx, fb, att); - return; - } - } - - DBG("Begin render texture tid %x tex=%u w=%d h=%d refcount=%d\n", - _glthread_GetID(), - att->Texture->Name, newImage->Width, newImage->Height, - irb->Base.RefCount); - - /* point the renderbufer's region to the texture image region */ - intel_image = intel_texture_image(newImage); - if (irb->region != intel_image->mt->region) { - if (irb->region) - intel_region_release(&irb->region); - intel_region_reference(&irb->region, intel_image->mt->region); - } - - /* compute offset of the particular 2D image within the texture region */ - imageOffset = intel_miptree_image_offset(intel_image->mt, - att->CubeMapFace, - att->TextureLevel); - - if (att->Texture->Target == GL_TEXTURE_3D) { - const GLuint *offsets = intel_miptree_depth_offsets(intel_image->mt, - att->TextureLevel); - imageOffset += offsets[att->Zoffset]; - } - - /* store that offset in the region */ - intel_image->mt->region->draw_offset = imageOffset; - - /* update drawing region, etc */ - intel_draw_buffer(ctx, fb); -} - - -/** - * Called by Mesa when rendering to a texture is done. - */ -static void -intel_finish_render_texture(GLcontext * ctx, - struct gl_renderbuffer_attachment *att) -{ - struct intel_renderbuffer *irb = intel_renderbuffer(att->Renderbuffer); - - DBG("End render texture (tid %x) tex %u\n", _glthread_GetID(), att->Texture->Name); - - if (irb) { - /* just release the region */ - intel_region_release(&irb->region); - } - else if (att->Renderbuffer) { - /* software fallback */ - _mesa_finish_render_texture(ctx, att); - /* XXX FBO: Need to unmap the buffer (or in intelSpanRenderStart???) */ - } -} - - -/** - * Do one-time context initializations related to GL_EXT_framebuffer_object. - * Hook in device driver functions. - */ -void -intel_fbo_init(struct intel_context *intel) -{ - intel->ctx.Driver.NewFramebuffer = intel_new_framebuffer; - intel->ctx.Driver.NewRenderbuffer = intel_new_renderbuffer; - intel->ctx.Driver.BindFramebuffer = intel_bind_framebuffer; - intel->ctx.Driver.FramebufferRenderbuffer = intel_framebuffer_renderbuffer; - intel->ctx.Driver.RenderTexture = intel_render_texture; - intel->ctx.Driver.FinishRenderTexture = intel_finish_render_texture; - intel->ctx.Driver.ResizeBuffers = intel_resize_buffers; -} +../intel/intel_fbo.c
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