--- /dev/null
+#include "swrast/swrast.h"
+#include "main/renderbuffer.h"
+#include "main/texobj.h"
+#include "main/teximage.h"
+#include "main/mipmap.h"
+#include "drivers/common/meta.h"
+#include "intel_context.h"
+#include "intel_mipmap_tree.h"
+#include "intel_tex.h"
+#include "intel_fbo.h"
+
+#define FILE_DEBUG_FLAG DEBUG_TEXTURE
+
+static struct gl_texture_image *
+intelNewTextureImage(struct gl_context * ctx)
+{
+ DBG("%s\n", __FUNCTION__);
+ (void) ctx;
+ return (struct gl_texture_image *) CALLOC_STRUCT(intel_texture_image);
+}
+
+static void
+intelDeleteTextureImage(struct gl_context * ctx, struct gl_texture_image *img)
+{
+ /* nothing special (yet) for intel_texture_image */
+ _mesa_delete_texture_image(ctx, img);
+}
+
+
+static struct gl_texture_object *
+intelNewTextureObject(struct gl_context * ctx, GLuint name, GLenum target)
+{
+ struct intel_texture_object *obj = CALLOC_STRUCT(intel_texture_object);
+
+ (void) ctx;
+
+ DBG("%s\n", __FUNCTION__);
+
+ if (obj == NULL)
+ return NULL;
+
+ _mesa_initialize_texture_object(ctx, &obj->base, name, target);
+
+ obj->needs_validate = true;
+
+ return &obj->base;
+}
+
+static void
+intelDeleteTextureObject(struct gl_context *ctx,
+ struct gl_texture_object *texObj)
+{
+ struct intel_texture_object *intelObj = intel_texture_object(texObj);
+
+ intel_miptree_release(&intelObj->mt);
+ _mesa_delete_texture_object(ctx, texObj);
+}
+
+static GLboolean
+intel_alloc_texture_image_buffer(struct gl_context *ctx,
+ struct gl_texture_image *image)
+{
+ struct intel_context *intel = intel_context(ctx);
+ struct intel_texture_image *intel_image = intel_texture_image(image);
+ struct gl_texture_object *texobj = image->TexObject;
+ struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
+
+ assert(image->Border == 0);
+
+ /* Because the driver uses AllocTextureImageBuffer() internally, it may end
+ * up mismatched with FreeTextureImageBuffer(), but that is safe to call
+ * multiple times.
+ */
+ ctx->Driver.FreeTextureImageBuffer(ctx, image);
+
+ if (!_swrast_init_texture_image(image))
+ return false;
+
+ if (intel_texobj->mt &&
+ intel_miptree_match_image(intel_texobj->mt, image)) {
+ intel_miptree_reference(&intel_image->mt, intel_texobj->mt);
+ DBG("%s: alloc obj %p level %d %dx%dx%d using object's miptree %p\n",
+ __FUNCTION__, texobj, image->Level,
+ image->Width, image->Height, image->Depth, intel_texobj->mt);
+ } else {
+ intel_image->mt = intel_miptree_create_for_teximage(intel, intel_texobj,
+ intel_image,
+ false);
+
+ /* Even if the object currently has a mipmap tree associated
+ * with it, this one is a more likely candidate to represent the
+ * whole object since our level didn't fit what was there
+ * before, and any lower levels would fit into our miptree.
+ */
+ intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
+
+ DBG("%s: alloc obj %p level %d %dx%dx%d using new miptree %p\n",
+ __FUNCTION__, texobj, image->Level,
+ image->Width, image->Height, image->Depth, intel_image->mt);
+ }
+
+ intel_texobj->needs_validate = true;
+
+ return true;
+}
+
+static void
+intel_free_texture_image_buffer(struct gl_context * ctx,
+ struct gl_texture_image *texImage)
+{
+ struct intel_texture_image *intelImage = intel_texture_image(texImage);
+
+ DBG("%s\n", __FUNCTION__);
+
+ intel_miptree_release(&intelImage->mt);
+
+ _swrast_free_texture_image_buffer(ctx, texImage);
+}
+
+/**
+ * Map texture memory/buffer into user space.
+ * Note: the region of interest parameters are ignored here.
+ * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
+ * \param mapOut returns start of mapping of region of interest
+ * \param rowStrideOut returns row stride in bytes
+ */
+static void
+intel_map_texture_image(struct gl_context *ctx,
+ struct gl_texture_image *tex_image,
+ GLuint slice,
+ GLuint x, GLuint y, GLuint w, GLuint h,
+ GLbitfield mode,
+ GLubyte **map,
+ GLint *stride)
+{
+ struct intel_context *intel = intel_context(ctx);
+ struct intel_texture_image *intel_image = intel_texture_image(tex_image);
+ struct intel_mipmap_tree *mt = intel_image->mt;
+
+ /* Our texture data is always stored in a miptree. */
+ assert(mt);
+
+ /* Check that our caller wasn't confused about how to map a 1D texture. */
+ assert(tex_image->TexObject->Target != GL_TEXTURE_1D_ARRAY ||
+ h == 1);
+
+ /* intel_miptree_map operates on a unified "slice" number that references the
+ * cube face, since it's all just slices to the miptree code.
+ */
+ if (tex_image->TexObject->Target == GL_TEXTURE_CUBE_MAP)
+ slice = tex_image->Face;
+
+ intel_miptree_map(intel, mt, tex_image->Level, slice, x, y, w, h, mode,
+ (void **)map, stride);
+}
+
+static void
+intel_unmap_texture_image(struct gl_context *ctx,
+ struct gl_texture_image *tex_image, GLuint slice)
+{
+ struct intel_context *intel = intel_context(ctx);
+ struct intel_texture_image *intel_image = intel_texture_image(tex_image);
+ struct intel_mipmap_tree *mt = intel_image->mt;
+
+ if (tex_image->TexObject->Target == GL_TEXTURE_CUBE_MAP)
+ slice = tex_image->Face;
+
+ intel_miptree_unmap(intel, mt, tex_image->Level, slice);
+}
+
+void
+intelInitTextureFuncs(struct dd_function_table *functions)
+{
+ functions->NewTextureObject = intelNewTextureObject;
+ functions->NewTextureImage = intelNewTextureImage;
+ functions->DeleteTextureImage = intelDeleteTextureImage;
+ functions->DeleteTexture = intelDeleteTextureObject;
+ functions->AllocTextureImageBuffer = intel_alloc_texture_image_buffer;
+ functions->FreeTextureImageBuffer = intel_free_texture_image_buffer;
+ functions->MapTextureImage = intel_map_texture_image;
+ functions->UnmapTextureImage = intel_unmap_texture_image;
+}
projects / mesa.git / blobdiff