Module: Mesa
Branch: master
Commit: 5fb5ea97f4439184f03075f57fa1fda56caf51b4
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=5fb5ea97f4439184f03075f57fa1fda56caf51b4

Author: Maciej Cencora <m.cenc...@gmail.com>
Date:   Sat Jul 11 20:40:51 2009 +0200

r300: use VBOs for vertex attributes

---

 src/mesa/drivers/dri/r300/r300_context.c |    2 +
 src/mesa/drivers/dri/r300/r300_context.h |    5 +-
 src/mesa/drivers/dri/r300/r300_draw.c    |  264 ++++++++++++++++++++---------
 3 files changed, 187 insertions(+), 84 deletions(-)

diff --git a/src/mesa/drivers/dri/r300/r300_context.c 
b/src/mesa/drivers/dri/r300/r300_context.c
index db404b3..799e613 100644
--- a/src/mesa/drivers/dri/r300/r300_context.c
+++ b/src/mesa/drivers/dri/r300/r300_context.c
@@ -67,6 +67,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
SOFTWARE.
 #include "r300_render.h"
 #include "r300_swtcl.h"
 #include "radeon_bocs_wrapper.h"
+#include "radeon_buffer_objects.h"
 
 
 #include "vblank.h"
@@ -398,6 +399,7 @@ GLboolean r300CreateContext(const __GLcontextModes * 
glVisual,
        r300InitStateFuncs(&functions);
        r300InitTextureFuncs(&functions);
        r300InitShaderFuncs(&functions);
+       radeonInitBufferObjectFuncs(&functions);
 
        if (!radeonInitContext(&r300->radeon, &functions,
                               glVisual, driContextPriv,
diff --git a/src/mesa/drivers/dri/r300/r300_context.h 
b/src/mesa/drivers/dri/r300/r300_context.h
index 24dc6bc..09de898 100644
--- a/src/mesa/drivers/dri/r300/r300_context.h
+++ b/src/mesa/drivers/dri/r300/r300_context.h
@@ -478,11 +478,12 @@ struct r300_vertex_buffer {
        struct vertex_attribute {
                /* generic */
                GLubyte element;
-               GLvoid *data;
-               GLboolean free_needed;
                GLuint stride;
                GLuint dwords;
                GLubyte size; /* number of components */
+               GLboolean is_named_bo;
+               struct radeon_bo *bo;
+               GLint bo_offset;
 
                /* hw specific */
                uint32_t data_type:4;
diff --git a/src/mesa/drivers/dri/r300/r300_draw.c 
b/src/mesa/drivers/dri/r300/r300_draw.c
index fcfd309..99c73d2 100644
--- a/src/mesa/drivers/dri/r300/r300_draw.c
+++ b/src/mesa/drivers/dri/r300/r300_draw.c
@@ -39,17 +39,20 @@
 #include "r300_state.h"
 #include "r300_tex.h"
 
+#include "radeon_buffer_objects.h"
+
 #include "tnl/tnl.h"
 #include "tnl/t_vp_build.h"
 #include "vbo/vbo_context.h"
 #include "swrast/swrast.h"
 #include "swrast_setup/swrast_setup.h"
 
-static void r300FixupIndexBuffer(GLcontext *ctx, const struct 
_mesa_index_buffer *mesa_ind_buf, struct gl_buffer_object **bo, GLuint *nr_bo)
+static void r300FixupIndexBuffer(GLcontext *ctx, const struct 
_mesa_index_buffer *mesa_ind_buf)
 {
        r300ContextPtr r300 = R300_CONTEXT(ctx);
        struct r300_index_buffer *ind_buf = &r300->ind_buf;
        GLvoid *src_ptr;
+       GLboolean mapped_bo = GL_FALSE;
 
        if (!mesa_ind_buf) {
                ind_buf->ptr = NULL;
@@ -58,9 +61,8 @@ static void r300FixupIndexBuffer(GLcontext *ctx, const struct 
_mesa_index_buffer
 
        ind_buf->count = mesa_ind_buf->count;
        if (mesa_ind_buf->obj->Name && !mesa_ind_buf->obj->Pointer) {
-               bo[*nr_bo] = mesa_ind_buf->obj;
-               (*nr_bo)++;
                ctx->Driver.MapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER, 
GL_READ_ONLY_ARB, mesa_ind_buf->obj);
+               mapped_bo = GL_TRUE;
                assert(mesa_ind_buf->obj->Pointer != NULL);
        }
        src_ptr = ADD_POINTERS(mesa_ind_buf->obj->Pointer, mesa_ind_buf->ptr);
@@ -110,6 +112,10 @@ static void r300FixupIndexBuffer(GLcontext *ctx, const 
struct _mesa_index_buffer
                ind_buf->free_needed = GL_FALSE;
                ind_buf->is_32bit = GL_TRUE;
        }
+
+       if (mapped_bo) {
+               ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER, 
mesa_ind_buf->obj);
+       }
 }
 
 static int getTypeSize(GLenum type)
@@ -161,26 +167,118 @@ static int getTypeSize(GLenum type)
        }                                               \
 } while (0)
 
-static void r300TranslateAttrib(GLcontext *ctx, GLuint attr, int count, const 
struct gl_client_array *input, struct gl_buffer_object **bo, GLuint *nr_bo)
+/**
+ * Convert attribute data type to float
+ * If the attribute uses named buffer object replace the bo with newly 
allocated bo
+ */
+static void r300ConvertAttrib(GLcontext *ctx, int count, const struct 
gl_client_array *input, struct vertex_attribute *attr)
 {
        r300ContextPtr r300 = R300_CONTEXT(ctx);
-       struct r300_vertex_buffer *vbuf = &r300->vbuf;
-       struct vertex_attribute r300_attr;
-       const void *src_ptr;
-       GLenum type;
+       const GLvoid *src_ptr;
+       GLboolean mapped_named_bo = GL_FALSE;
+       GLfloat *dst_ptr;
        GLuint stride;
 
+       stride = (input->StrideB == 0) ? getTypeSize(input->Type) * input->Size 
: input->StrideB;
+
+       /* Convert value for first element only */
+       if (input->StrideB == 0)
+               count = 1;
+
        if (input->BufferObj->Name) {
                if (!input->BufferObj->Pointer) {
-                       bo[*nr_bo] = input->BufferObj;
-                       (*nr_bo)++;
                        ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER, 
GL_READ_ONLY_ARB, input->BufferObj);
-                       assert(input->BufferObj->Pointer != NULL);
+                       mapped_named_bo = GL_TRUE;
                }
 
                src_ptr = ADD_POINTERS(input->BufferObj->Pointer, input->Ptr);
-       } else
+       } else {
                src_ptr = input->Ptr;
+       }
+
+       radeonAllocDmaRegion(&r300->radeon, &attr->bo, &attr->bo_offset, 
sizeof(GLfloat) * input->Size * count, 32);
+       dst_ptr = (GLfloat *)ADD_POINTERS(attr->bo->ptr, attr->bo_offset);
+
+       if (RADEON_DEBUG & DEBUG_FALLBACKS) {
+               fprintf(stderr, "%s: Converting vertex attributes, attribute 
data format %x,", __FUNCTION__, input->Type);
+               fprintf(stderr, "stride %d, components %d\n", stride, 
input->Size);
+       }
+
+       assert(src_ptr != NULL);
+
+       switch (input->Type) {
+               case GL_DOUBLE:
+                       CONVERT(GLdouble, (GLfloat));
+                       break;
+               case GL_UNSIGNED_INT:
+                       CONVERT(GLuint, UINT_TO_FLOAT);
+                       break;
+               case GL_INT:
+                       CONVERT(GLint, INT_TO_FLOAT);
+                       break;
+               case GL_UNSIGNED_SHORT:
+                       CONVERT(GLushort, USHORT_TO_FLOAT);
+                       break;
+               case GL_SHORT:
+                       CONVERT(GLshort, SHORT_TO_FLOAT);
+                       break;
+               case GL_UNSIGNED_BYTE:
+                       assert(input->Format != GL_BGRA);
+                       CONVERT(GLubyte, UBYTE_TO_FLOAT);
+                       break;
+               case GL_BYTE:
+                       CONVERT(GLbyte, BYTE_TO_FLOAT);
+                       break;
+               default:
+                       assert(0);
+                       break;
+       }
+
+       if (mapped_named_bo) {
+               ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER, input->BufferObj);
+       }
+}
+
+static void r300AlignDataToDword(GLcontext *ctx, const struct gl_client_array 
*input, int count, struct vertex_attribute *attr)
+{
+       r300ContextPtr r300 = R300_CONTEXT(ctx);
+       const int dst_stride = (input->StrideB + 3) & ~3;
+       const int size = getTypeSize(input->Type) * input->Size * count;
+       GLboolean mapped_named_bo = GL_FALSE;
+
+       radeonAllocDmaRegion(&r300->radeon, &attr->bo, &attr->bo_offset, size, 
32);
+
+       if (!input->BufferObj->Pointer) {
+               ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER, GL_READ_ONLY_ARB, 
input->BufferObj);
+               mapped_named_bo = GL_TRUE;
+       }
+
+       {
+               GLvoid *src_ptr = ADD_POINTERS(input->BufferObj->Pointer, 
input->Ptr);
+               GLvoid *dst_ptr = ADD_POINTERS(attr->bo->ptr, attr->bo_offset);
+               int i;
+
+               for (i = 0; i < count; ++i) {
+                       _mesa_memcpy(dst_ptr, src_ptr, input->StrideB);
+                       src_ptr += input->StrideB;
+                       dst_ptr += dst_stride;
+               }
+       }
+
+       if (mapped_named_bo) {
+               ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER, input->BufferObj);
+       }
+
+       attr->stride = dst_stride;
+}
+
+static void r300TranslateAttrib(GLcontext *ctx, GLuint attr, int count, const 
struct gl_client_array *input)
+{
+       r300ContextPtr r300 = R300_CONTEXT(ctx);
+       struct r300_vertex_buffer *vbuf = &r300->vbuf;
+       struct vertex_attribute r300_attr;
+       GLenum type;
+       GLuint stride;
 
        stride = (input->StrideB == 0) ? getTypeSize(input->Type) * input->Size 
: input->StrideB;
 
@@ -189,62 +287,57 @@ static void r300TranslateAttrib(GLcontext *ctx, GLuint 
attr, int count, const st
            getTypeSize(input->Type) != 4 ||
 #endif
            stride < 4) {
-               if (RADEON_DEBUG & DEBUG_FALLBACKS) {
-                       fprintf(stderr, "%s: Converting vertex attributes, 
attribute data format %x,", __FUNCTION__, input->Type);
-                       fprintf(stderr, "stride %d, components %d\n", stride, 
input->Size);
-               }
-
-               GLfloat *dst_ptr, *tmp;
-
-               /* Convert value for first element only */
-               if (input->StrideB == 0)
-                       count = 1;
-
-               tmp = dst_ptr = _mesa_malloc(sizeof(GLfloat) * input->Size * 
count);
-
-               switch (input->Type) {
-                       case GL_DOUBLE:
-                               CONVERT(GLdouble, (GLfloat));
-                               break;
-                       case GL_UNSIGNED_INT:
-                               CONVERT(GLuint, UINT_TO_FLOAT);
-                               break;
-                       case GL_INT:
-                               CONVERT(GLint, INT_TO_FLOAT);
-                               break;
-                       case GL_UNSIGNED_SHORT:
-                               CONVERT(GLushort, USHORT_TO_FLOAT);
-                               break;
-                       case GL_SHORT:
-                               CONVERT(GLshort, SHORT_TO_FLOAT);
-                               break;
-                       case GL_UNSIGNED_BYTE:
-                               assert(input->Format != GL_BGRA);
-                               CONVERT(GLubyte, UBYTE_TO_FLOAT);
-                               break;
-                       case GL_BYTE:
-                               CONVERT(GLbyte, BYTE_TO_FLOAT);
-                               break;
-                       default:
-                               assert(0);
-                               break;
-               }
 
                type = GL_FLOAT;
-               r300_attr.free_needed = GL_TRUE;
-               r300_attr.data = tmp;
+
+               r300ConvertAttrib(ctx, count, input, &r300_attr);
                if (input->StrideB == 0) {
                        r300_attr.stride = 0;
                } else {
                        r300_attr.stride = sizeof(GLfloat) * input->Size;
                }
                r300_attr.dwords = input->Size;
+               r300_attr.is_named_bo = GL_FALSE;
        } else {
                type = input->Type;
-               r300_attr.free_needed = GL_FALSE;
-               r300_attr.data = (GLvoid *)src_ptr;
-               r300_attr.stride = input->StrideB;
-               r300_attr.dwords = (getTypeSize(type) * input->Size  + 3)/ 4;
+               r300_attr.dwords = (getTypeSize(type) * input->Size + 3)/ 4;
+               if (input->BufferObj->Name) {
+                       if (stride % 4 != 0) {
+                               assert(((int) input->Ptr) % input->StrideB == 
0);
+                               r300AlignDataToDword(ctx, input, count, 
&r300_attr);
+                               r300_attr.is_named_bo = GL_FALSE;
+                       } else {
+                               r300_attr.stride = input->StrideB;
+                               r300_attr.bo_offset = (GLuint) input->Ptr;
+                               r300_attr.bo = 
get_radeon_buffer_object(input->BufferObj)->bo;
+                               r300_attr.is_named_bo = GL_TRUE;
+                       }
+               } else {
+                       int size;
+                       uint32_t *dst;
+
+                       if (input->StrideB == 0) {
+                               size = getTypeSize(input->Type) * input->Size;
+                               count = 1;
+                               r300_attr.stride = 0;
+                       } else {
+                               size = getTypeSize(input->Type) * input->Size * 
count;
+                               r300_attr.stride = (getTypeSize(type) * 
input->Size + 3) & ~3;
+                       }
+
+                       radeonAllocDmaRegion(&r300->radeon, &r300_attr.bo, 
&r300_attr.bo_offset, size, 32);
+                       assert(r300_attr.bo->ptr != NULL);
+                       dst = (uint32_t *)ADD_POINTERS(r300_attr.bo->ptr, 
r300_attr.bo_offset);
+                       switch (r300_attr.dwords) {
+                               case 1: radeonEmitVec4(dst, input->Ptr, 
input->StrideB, count); break;
+                               case 2: radeonEmitVec8(dst, input->Ptr, 
input->StrideB, count); break;
+                               case 3: radeonEmitVec12(dst, input->Ptr, 
input->StrideB, count); break;
+                               case 4: radeonEmitVec16(dst, input->Ptr, 
input->StrideB, count); break;
+                               default: assert(0); break;
+                       }
+
+                       r300_attr.is_named_bo = GL_FALSE;
+               }
        }
 
        r300_attr.size = input->Size;
@@ -333,7 +426,7 @@ static void r300TranslateAttrib(GLcontext *ctx, GLuint 
attr, int count, const st
        ++vbuf->num_attribs;
 }
 
-static void r300SetVertexFormat(GLcontext *ctx, const struct gl_client_array 
*arrays[], int count, struct gl_buffer_object **bo, GLuint *nr_bo)
+static void r300SetVertexFormat(GLcontext *ctx, const struct gl_client_array 
*arrays[], int count)
 {
        r300ContextPtr r300 = R300_CONTEXT(ctx);
        struct r300_vertex_buffer *vbuf = &r300->vbuf;
@@ -351,7 +444,7 @@ static void r300SetVertexFormat(GLcontext *ctx, const 
struct gl_client_array *ar
                                ++i;
                        }
 
-                       r300TranslateAttrib(ctx, i, count, arrays[i], bo, 
nr_bo);
+                       r300TranslateAttrib(ctx, i, count, arrays[i]);
 
                        tmp >>= 1;
                        ++i;
@@ -366,39 +459,49 @@ static void r300SetVertexFormat(GLcontext *ctx, const 
struct gl_client_array *ar
                int i;
 
                for (i = 0; i < vbuf->num_attribs; i++) {
-                       rcommon_emit_vector(ctx, &r300->radeon.tcl.aos[i],
-                                               vbuf->attribs[i].data, 
vbuf->attribs[i].dwords,
-                                               vbuf->attribs[i].stride, count);
+                       struct radeon_aos *aos = &r300->radeon.tcl.aos[i];
+
+                       aos->count = vbuf->attribs[i].stride == 0 ? 1 : count;
+                       aos->stride = vbuf->attribs[i].stride / sizeof(float);
+                       aos->offset = vbuf->attribs[i].bo_offset;
+                       aos->components = vbuf->attribs[i].dwords;
+                       aos->bo = vbuf->attribs[i].bo;
+
+                       if (vbuf->attribs[i].is_named_bo) {
+                               
radeon_cs_space_check_with_bo(r300->radeon.cmdbuf.cs,
+                                                                               
          aos->bo,
+                                                                               
          RADEON_GEM_DOMAIN_GTT, 0);
+                       }
                }
 
                r300->radeon.tcl.aos_count = vbuf->num_attribs;
        }
 }
 
-static void r300FreeData(GLcontext *ctx, struct gl_buffer_object **bo, GLuint 
nr_bo)
+static void r300FreeData(GLcontext *ctx)
 {
+       r300ContextPtr r300 = R300_CONTEXT(ctx);
        {
-               struct r300_vertex_buffer *vbuf = &R300_CONTEXT(ctx)->vbuf;
                int i;
 
-               for (i = 0; i < vbuf->num_attribs; i++) {
-                       if (vbuf->attribs[i].free_needed)
-                               _mesa_free(vbuf->attribs[i].data);
+               for (i = 0; i < r300->vbuf.num_attribs; i++) {
+                       if (!r300->vbuf.attribs[i].is_named_bo) {
+                               radeon_bo_unref(r300->vbuf.attribs[i].bo);
+                       }
+                       r300->radeon.tcl.aos[i].bo = NULL;
                }
        }
 
        {
                struct r300_index_buffer *ind_buf = &R300_CONTEXT(ctx)->ind_buf;
-               if (ind_buf->free_needed)
+               if (ind_buf->free_needed) {
                        _mesa_free(ind_buf->ptr);
-       }
-
-       {
-               int i;
+               }
 
-               for (i = 0; i < nr_bo; ++i) {
-                       ctx->Driver.UnmapBuffer(ctx, 0, bo[i]);
+               if (r300->radeon.tcl.elt_dma_bo) {
+                       radeon_bo_unref(r300->radeon.tcl.elt_dma_bo);
                }
+               r300->radeon.tcl.elt_dma_bo = NULL;
        }
 }
 
@@ -411,8 +514,7 @@ static GLboolean r300TryDrawPrims(GLcontext *ctx,
                                         GLuint max_index )
 {
        struct r300_context *r300 = R300_CONTEXT(ctx);
-       struct gl_buffer_object *bo[VERT_ATTRIB_MAX+1];
-       GLuint i, nr_bo = 0;
+       GLuint i;
 
        if (ctx->NewState)
                _mesa_update_state( ctx );
@@ -424,7 +526,7 @@ static GLboolean r300TryDrawPrims(GLcontext *ctx,
 
        r300SwitchFallback(ctx, R300_FALLBACK_INVALID_BUFFERS, 
!r300ValidateBuffers(ctx));
 
-       r300FixupIndexBuffer(ctx, ib, bo, &nr_bo);
+       r300FixupIndexBuffer(ctx, ib);
 
        /* ensure we have the cmd buf space in advance to cover
         * the state + DMA AOS pointers */
@@ -432,7 +534,7 @@ static GLboolean r300TryDrawPrims(GLcontext *ctx,
                            r300->radeon.hw.max_state_size + (50*sizeof(int)),
                            __FUNCTION__);
 
-       r300SetVertexFormat(ctx, arrays, max_index + 1, bo, &nr_bo);
+       r300SetVertexFormat(ctx, arrays, max_index + 1);
 
        if (r300->fallback)
                return GL_FALSE;
@@ -450,9 +552,7 @@ static GLboolean r300TryDrawPrims(GLcontext *ctx,
 
        r300EmitCacheFlush(r300);
 
-       radeonReleaseArrays(ctx, ~0);
-
-       r300FreeData(ctx, bo, nr_bo);
+       r300FreeData(ctx);
 
        return GL_TRUE;
 }

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