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-rw-r--r--src/mesa/state_tracker/st_atom_array.c588
1 files changed, 588 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_atom_array.c b/src/mesa/state_tracker/st_atom_array.c
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@@ -0,0 +1,588 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2012 Marek Olšák <[email protected]>
+ * 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 AUTHORS 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.
+ *
+ **************************************************************************/
+
+/*
+ * This converts the VBO's vertex attribute/array information into
+ * Gallium vertex state and binds it.
+ *
+ * Authors:
+ * Keith Whitwell <[email protected]>
+ * Marek Olšák <[email protected]>
+ */
+
+#include "st_context.h"
+#include "st_atom.h"
+#include "st_cb_bufferobjects.h"
+#include "st_draw.h"
+#include "st_program.h"
+
+#include "cso_cache/cso_context.h"
+#include "util/u_math.h"
+
+#include "main/bufferobj.h"
+#include "main/image.h"
+
+
+static GLuint double_types[4] = {
+ PIPE_FORMAT_R64_FLOAT,
+ PIPE_FORMAT_R64G64_FLOAT,
+ PIPE_FORMAT_R64G64B64_FLOAT,
+ PIPE_FORMAT_R64G64B64A64_FLOAT
+};
+
+static GLuint float_types[4] = {
+ PIPE_FORMAT_R32_FLOAT,
+ PIPE_FORMAT_R32G32_FLOAT,
+ PIPE_FORMAT_R32G32B32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT
+};
+
+static GLuint half_float_types[4] = {
+ PIPE_FORMAT_R16_FLOAT,
+ PIPE_FORMAT_R16G16_FLOAT,
+ PIPE_FORMAT_R16G16B16_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT
+};
+
+static GLuint uint_types_norm[4] = {
+ PIPE_FORMAT_R32_UNORM,
+ PIPE_FORMAT_R32G32_UNORM,
+ PIPE_FORMAT_R32G32B32_UNORM,
+ PIPE_FORMAT_R32G32B32A32_UNORM
+};
+
+static GLuint uint_types_scale[4] = {
+ PIPE_FORMAT_R32_USCALED,
+ PIPE_FORMAT_R32G32_USCALED,
+ PIPE_FORMAT_R32G32B32_USCALED,
+ PIPE_FORMAT_R32G32B32A32_USCALED
+};
+
+static GLuint uint_types_int[4] = {
+ PIPE_FORMAT_R32_UINT,
+ PIPE_FORMAT_R32G32_UINT,
+ PIPE_FORMAT_R32G32B32_UINT,
+ PIPE_FORMAT_R32G32B32A32_UINT
+};
+
+static GLuint int_types_norm[4] = {
+ PIPE_FORMAT_R32_SNORM,
+ PIPE_FORMAT_R32G32_SNORM,
+ PIPE_FORMAT_R32G32B32_SNORM,
+ PIPE_FORMAT_R32G32B32A32_SNORM
+};
+
+static GLuint int_types_scale[4] = {
+ PIPE_FORMAT_R32_SSCALED,
+ PIPE_FORMAT_R32G32_SSCALED,
+ PIPE_FORMAT_R32G32B32_SSCALED,
+ PIPE_FORMAT_R32G32B32A32_SSCALED
+};
+
+static GLuint int_types_int[4] = {
+ PIPE_FORMAT_R32_SINT,
+ PIPE_FORMAT_R32G32_SINT,
+ PIPE_FORMAT_R32G32B32_SINT,
+ PIPE_FORMAT_R32G32B32A32_SINT
+};
+
+static GLuint ushort_types_norm[4] = {
+ PIPE_FORMAT_R16_UNORM,
+ PIPE_FORMAT_R16G16_UNORM,
+ PIPE_FORMAT_R16G16B16_UNORM,
+ PIPE_FORMAT_R16G16B16A16_UNORM
+};
+
+static GLuint ushort_types_scale[4] = {
+ PIPE_FORMAT_R16_USCALED,
+ PIPE_FORMAT_R16G16_USCALED,
+ PIPE_FORMAT_R16G16B16_USCALED,
+ PIPE_FORMAT_R16G16B16A16_USCALED
+};
+
+static GLuint ushort_types_int[4] = {
+ PIPE_FORMAT_R16_UINT,
+ PIPE_FORMAT_R16G16_UINT,
+ PIPE_FORMAT_R16G16B16_UINT,
+ PIPE_FORMAT_R16G16B16A16_UINT
+};
+
+static GLuint short_types_norm[4] = {
+ PIPE_FORMAT_R16_SNORM,
+ PIPE_FORMAT_R16G16_SNORM,
+ PIPE_FORMAT_R16G16B16_SNORM,
+ PIPE_FORMAT_R16G16B16A16_SNORM
+};
+
+static GLuint short_types_scale[4] = {
+ PIPE_FORMAT_R16_SSCALED,
+ PIPE_FORMAT_R16G16_SSCALED,
+ PIPE_FORMAT_R16G16B16_SSCALED,
+ PIPE_FORMAT_R16G16B16A16_SSCALED
+};
+
+static GLuint short_types_int[4] = {
+ PIPE_FORMAT_R16_SINT,
+ PIPE_FORMAT_R16G16_SINT,
+ PIPE_FORMAT_R16G16B16_SINT,
+ PIPE_FORMAT_R16G16B16A16_SINT
+};
+
+static GLuint ubyte_types_norm[4] = {
+ PIPE_FORMAT_R8_UNORM,
+ PIPE_FORMAT_R8G8_UNORM,
+ PIPE_FORMAT_R8G8B8_UNORM,
+ PIPE_FORMAT_R8G8B8A8_UNORM
+};
+
+static GLuint ubyte_types_scale[4] = {
+ PIPE_FORMAT_R8_USCALED,
+ PIPE_FORMAT_R8G8_USCALED,
+ PIPE_FORMAT_R8G8B8_USCALED,
+ PIPE_FORMAT_R8G8B8A8_USCALED
+};
+
+static GLuint ubyte_types_int[4] = {
+ PIPE_FORMAT_R8_UINT,
+ PIPE_FORMAT_R8G8_UINT,
+ PIPE_FORMAT_R8G8B8_UINT,
+ PIPE_FORMAT_R8G8B8A8_UINT
+};
+
+static GLuint byte_types_norm[4] = {
+ PIPE_FORMAT_R8_SNORM,
+ PIPE_FORMAT_R8G8_SNORM,
+ PIPE_FORMAT_R8G8B8_SNORM,
+ PIPE_FORMAT_R8G8B8A8_SNORM
+};
+
+static GLuint byte_types_scale[4] = {
+ PIPE_FORMAT_R8_SSCALED,
+ PIPE_FORMAT_R8G8_SSCALED,
+ PIPE_FORMAT_R8G8B8_SSCALED,
+ PIPE_FORMAT_R8G8B8A8_SSCALED
+};
+
+static GLuint byte_types_int[4] = {
+ PIPE_FORMAT_R8_SINT,
+ PIPE_FORMAT_R8G8_SINT,
+ PIPE_FORMAT_R8G8B8_SINT,
+ PIPE_FORMAT_R8G8B8A8_SINT
+};
+
+static GLuint fixed_types[4] = {
+ PIPE_FORMAT_R32_FIXED,
+ PIPE_FORMAT_R32G32_FIXED,
+ PIPE_FORMAT_R32G32B32_FIXED,
+ PIPE_FORMAT_R32G32B32A32_FIXED
+};
+
+
+/**
+ * Return a PIPE_FORMAT_x for the given GL datatype and size.
+ */
+enum pipe_format
+st_pipe_vertex_format(GLenum type, GLuint size, GLenum format,
+ GLboolean normalized, GLboolean integer)
+{
+ assert((type >= GL_BYTE && type <= GL_DOUBLE) ||
+ type == GL_FIXED || type == GL_HALF_FLOAT ||
+ type == GL_INT_2_10_10_10_REV ||
+ type == GL_UNSIGNED_INT_2_10_10_10_REV);
+ assert(size >= 1);
+ assert(size <= 4);
+ assert(format == GL_RGBA || format == GL_BGRA);
+
+ if (type == GL_INT_2_10_10_10_REV ||
+ type == GL_UNSIGNED_INT_2_10_10_10_REV) {
+ assert(size == 4);
+ assert(!integer);
+
+ if (format == GL_BGRA) {
+ if (type == GL_INT_2_10_10_10_REV) {
+ if (normalized)
+ return PIPE_FORMAT_B10G10R10A2_SNORM;
+ else
+ return PIPE_FORMAT_B10G10R10A2_SSCALED;
+ } else {
+ if (normalized)
+ return PIPE_FORMAT_B10G10R10A2_UNORM;
+ else
+ return PIPE_FORMAT_B10G10R10A2_USCALED;
+ }
+ } else {
+ if (type == GL_INT_2_10_10_10_REV) {
+ if (normalized)
+ return PIPE_FORMAT_R10G10B10A2_SNORM;
+ else
+ return PIPE_FORMAT_R10G10B10A2_SSCALED;
+ } else {
+ if (normalized)
+ return PIPE_FORMAT_R10G10B10A2_UNORM;
+ else
+ return PIPE_FORMAT_R10G10B10A2_USCALED;
+ }
+ }
+ }
+
+ if (format == GL_BGRA) {
+ /* this is an odd-ball case */
+ assert(type == GL_UNSIGNED_BYTE);
+ assert(normalized);
+ return PIPE_FORMAT_B8G8R8A8_UNORM;
+ }
+
+ if (integer) {
+ switch (type) {
+ case GL_INT: return int_types_int[size-1];
+ case GL_SHORT: return short_types_int[size-1];
+ case GL_BYTE: return byte_types_int[size-1];
+ case GL_UNSIGNED_INT: return uint_types_int[size-1];
+ case GL_UNSIGNED_SHORT: return ushort_types_int[size-1];
+ case GL_UNSIGNED_BYTE: return ubyte_types_int[size-1];
+ default: assert(0); return 0;
+ }
+ }
+ else if (normalized) {
+ switch (type) {
+ case GL_DOUBLE: return double_types[size-1];
+ case GL_FLOAT: return float_types[size-1];
+ case GL_HALF_FLOAT: return half_float_types[size-1];
+ case GL_INT: return int_types_norm[size-1];
+ case GL_SHORT: return short_types_norm[size-1];
+ case GL_BYTE: return byte_types_norm[size-1];
+ case GL_UNSIGNED_INT: return uint_types_norm[size-1];
+ case GL_UNSIGNED_SHORT: return ushort_types_norm[size-1];
+ case GL_UNSIGNED_BYTE: return ubyte_types_norm[size-1];
+ case GL_FIXED: return fixed_types[size-1];
+ default: assert(0); return 0;
+ }
+ }
+ else {
+ switch (type) {
+ case GL_DOUBLE: return double_types[size-1];
+ case GL_FLOAT: return float_types[size-1];
+ case GL_HALF_FLOAT: return half_float_types[size-1];
+ case GL_INT: return int_types_scale[size-1];
+ case GL_SHORT: return short_types_scale[size-1];
+ case GL_BYTE: return byte_types_scale[size-1];
+ case GL_UNSIGNED_INT: return uint_types_scale[size-1];
+ case GL_UNSIGNED_SHORT: return ushort_types_scale[size-1];
+ case GL_UNSIGNED_BYTE: return ubyte_types_scale[size-1];
+ case GL_FIXED: return fixed_types[size-1];
+ default: assert(0); return 0;
+ }
+ }
+ return PIPE_FORMAT_NONE; /* silence compiler warning */
+}
+
+/**
+ * Examine the active arrays to determine if we have interleaved
+ * vertex arrays all living in one VBO, or all living in user space.
+ */
+static GLboolean
+is_interleaved_arrays(const struct st_vertex_program *vp,
+ const struct st_vp_variant *vpv,
+ const struct gl_client_array **arrays)
+{
+ GLuint attr;
+ const struct gl_buffer_object *firstBufObj = NULL;
+ GLint firstStride = -1;
+ const GLubyte *firstPtr = NULL;
+ GLboolean userSpaceBuffer = GL_FALSE;
+
+ for (attr = 0; attr < vpv->num_inputs; attr++) {
+ const GLuint mesaAttr = vp->index_to_input[attr];
+ const struct gl_client_array *array = arrays[mesaAttr];
+ const struct gl_buffer_object *bufObj = array->BufferObj;
+ const GLsizei stride = array->StrideB; /* in bytes */
+
+ if (attr == 0) {
+ /* save info about the first array */
+ firstStride = stride;
+ firstPtr = array->Ptr;
+ firstBufObj = bufObj;
+ userSpaceBuffer = !bufObj || !bufObj->Name;
+ }
+ else {
+ /* check if other arrays interleave with the first, in same buffer */
+ if (stride != firstStride)
+ return GL_FALSE; /* strides don't match */
+
+ if (bufObj != firstBufObj)
+ return GL_FALSE; /* arrays in different VBOs */
+
+ if (abs(array->Ptr - firstPtr) > firstStride)
+ return GL_FALSE; /* arrays start too far apart */
+
+ if ((!_mesa_is_bufferobj(bufObj)) != userSpaceBuffer)
+ return GL_FALSE; /* mix of VBO and user-space arrays */
+ }
+ }
+
+ return GL_TRUE;
+}
+
+/**
+ * Set up for drawing interleaved arrays that all live in one VBO
+ * or all live in user space.
+ * \param vbuffer returns vertex buffer info
+ * \param velements returns vertex element info
+ */
+static boolean
+setup_interleaved_attribs(const struct st_vertex_program *vp,
+ const struct st_vp_variant *vpv,
+ const struct gl_client_array **arrays,
+ struct pipe_vertex_buffer *vbuffer,
+ struct pipe_vertex_element velements[])
+{
+ GLuint attr;
+ const GLubyte *low_addr = NULL;
+ GLboolean usingVBO; /* all arrays in a VBO? */
+ struct gl_buffer_object *bufobj;
+ GLsizei stride;
+
+ /* Find the lowest address of the arrays we're drawing,
+ * Init bufobj and stride.
+ */
+ if (vpv->num_inputs) {
+ const GLuint mesaAttr0 = vp->index_to_input[0];
+ const struct gl_client_array *array = arrays[mesaAttr0];
+
+ /* Since we're doing interleaved arrays, we know there'll be at most
+ * one buffer object and the stride will be the same for all arrays.
+ * Grab them now.
+ */
+ bufobj = array->BufferObj;
+ stride = array->StrideB;
+
+ low_addr = arrays[vp->index_to_input[0]]->Ptr;
+
+ for (attr = 1; attr < vpv->num_inputs; attr++) {
+ const GLubyte *start = arrays[vp->index_to_input[attr]]->Ptr;
+ low_addr = MIN2(low_addr, start);
+ }
+ }
+ else {
+ /* not sure we'll ever have zero inputs, but play it safe */
+ bufobj = NULL;
+ stride = 0;
+ low_addr = 0;
+ }
+
+ /* are the arrays in user space? */
+ usingVBO = _mesa_is_bufferobj(bufobj);
+
+ for (attr = 0; attr < vpv->num_inputs; attr++) {
+ const GLuint mesaAttr = vp->index_to_input[attr];
+ const struct gl_client_array *array = arrays[mesaAttr];
+ unsigned src_offset = (unsigned) (array->Ptr - low_addr);
+ GLuint element_size = array->_ElementSize;
+
+ assert(element_size == array->Size * _mesa_sizeof_type(array->Type));
+
+ velements[attr].src_offset = src_offset;
+ velements[attr].instance_divisor = array->InstanceDivisor;
+ velements[attr].vertex_buffer_index = 0;
+ velements[attr].src_format = st_pipe_vertex_format(array->Type,
+ array->Size,
+ array->Format,
+ array->Normalized,
+ array->Integer);
+ assert(velements[attr].src_format);
+ }
+
+ /*
+ * Return the vbuffer info and setup user-space attrib info, if needed.
+ */
+ if (vpv->num_inputs == 0) {
+ /* just defensive coding here */
+ vbuffer->buffer = NULL;
+ vbuffer->user_buffer = NULL;
+ vbuffer->buffer_offset = 0;
+ vbuffer->stride = 0;
+ }
+ else if (usingVBO) {
+ /* all interleaved arrays in a VBO */
+ struct st_buffer_object *stobj = st_buffer_object(bufobj);
+
+ if (!stobj || !stobj->buffer) {
+ return FALSE; /* out-of-memory error probably */
+ }
+
+ vbuffer->buffer = stobj->buffer;
+ vbuffer->user_buffer = NULL;
+ vbuffer->buffer_offset = pointer_to_offset(low_addr);
+ vbuffer->stride = stride;
+ }
+ else {
+ /* all interleaved arrays in user memory */
+ vbuffer->buffer = NULL;
+ vbuffer->user_buffer = low_addr;
+ vbuffer->buffer_offset = 0;
+ vbuffer->stride = stride;
+ }
+ return TRUE;
+}
+
+/**
+ * Set up a separate pipe_vertex_buffer and pipe_vertex_element for each
+ * vertex attribute.
+ * \param vbuffer returns vertex buffer info
+ * \param velements returns vertex element info
+ */
+static boolean
+setup_non_interleaved_attribs(struct st_context *st,
+ const struct st_vertex_program *vp,
+ const struct st_vp_variant *vpv,
+ const struct gl_client_array **arrays,
+ struct pipe_vertex_buffer vbuffer[],
+ struct pipe_vertex_element velements[])
+{
+ struct gl_context *ctx = st->ctx;
+ GLuint attr;
+
+ for (attr = 0; attr < vpv->num_inputs; attr++) {
+ const GLuint mesaAttr = vp->index_to_input[attr];
+ const struct gl_client_array *array = arrays[mesaAttr];
+ struct gl_buffer_object *bufobj = array->BufferObj;
+ GLsizei stride = array->StrideB;
+
+ assert(array->_ElementSize == array->Size * _mesa_sizeof_type(array->Type));
+
+ if (_mesa_is_bufferobj(bufobj)) {
+ /* Attribute data is in a VBO.
+ * Recall that for VBOs, the gl_client_array->Ptr field is
+ * really an offset from the start of the VBO, not a pointer.
+ */
+ struct st_buffer_object *stobj = st_buffer_object(bufobj);
+
+ if (!stobj || !stobj->buffer) {
+ return FALSE; /* out-of-memory error probably */
+ }
+
+ vbuffer[attr].buffer = stobj->buffer;
+ vbuffer[attr].user_buffer = NULL;
+ vbuffer[attr].buffer_offset = pointer_to_offset(array->Ptr);
+ }
+ else {
+ /* wrap user data */
+ void *ptr;
+
+ if (array->Ptr) {
+ ptr = (void *) array->Ptr;
+ }
+ else {
+ /* no array, use ctx->Current.Attrib[] value */
+ ptr = (void *) ctx->Current.Attrib[mesaAttr];
+ stride = 0;
+ }
+
+ assert(ptr);
+
+ vbuffer[attr].buffer = NULL;
+ vbuffer[attr].user_buffer = ptr;
+ vbuffer[attr].buffer_offset = 0;
+ }
+
+ /* common-case setup */
+ vbuffer[attr].stride = stride; /* in bytes */
+
+ velements[attr].src_offset = 0;
+ velements[attr].instance_divisor = array->InstanceDivisor;
+ velements[attr].vertex_buffer_index = attr;
+ velements[attr].src_format = st_pipe_vertex_format(array->Type,
+ array->Size,
+ array->Format,
+ array->Normalized,
+ array->Integer);
+ assert(velements[attr].src_format);
+ }
+ return TRUE;
+}
+
+static void update_array(struct st_context *st)
+{
+ struct gl_context *ctx = st->ctx;
+ const struct gl_client_array **arrays = ctx->Array._DrawArrays;
+ const struct st_vertex_program *vp;
+ const struct st_vp_variant *vpv;
+ struct pipe_vertex_buffer vbuffer[PIPE_MAX_SHADER_INPUTS];
+ struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
+ unsigned num_vbuffers, num_velements;
+
+ st->vertex_array_out_of_memory = FALSE;
+
+ /* No drawing has been done yet, so do nothing. */
+ if (!arrays)
+ return;
+
+ /* vertex program validation must be done before this */
+ vp = st->vp;
+ vpv = st->vp_variant;
+
+ memset(velements, 0, sizeof(struct pipe_vertex_element) * vpv->num_inputs);
+
+ /*
+ * Setup the vbuffer[] and velements[] arrays.
+ */
+ if (is_interleaved_arrays(vp, vpv, arrays)) {
+ if (!setup_interleaved_attribs(vp, vpv, arrays, vbuffer, velements)) {
+ st->vertex_array_out_of_memory = TRUE;
+ return;
+ }
+
+ num_vbuffers = 1;
+ num_velements = vpv->num_inputs;
+ if (num_velements == 0)
+ num_vbuffers = 0;
+ }
+ else {
+ if (!setup_non_interleaved_attribs(st, vp, vpv, arrays, vbuffer,
+ velements)) {
+ st->vertex_array_out_of_memory = TRUE;
+ return;
+ }
+
+ num_vbuffers = vpv->num_inputs;
+ num_velements = vpv->num_inputs;
+ }
+
+ cso_set_vertex_buffers(st->cso_context, num_vbuffers, vbuffer);
+ cso_set_vertex_elements(st->cso_context, num_velements, velements);
+}
+
+
+const struct st_tracked_state st_update_array = {
+ "st_update_array", /* name */
+ { /* dirty */
+ (_NEW_PROGRAM | _NEW_BUFFER_OBJECT), /* mesa */
+ ST_NEW_VERTEX_ARRAYS | ST_NEW_VERTEX_PROGRAM, /* st */
+ },
+ update_array /* update */
+};
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