meta: Track VBO using gl_buffer_object instead of GL API object handle

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

5 files changed, 72 insertions, 48 deletions

diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index 798639f..939f8c3 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -316,7 +316,7 @@ _mesa_meta_setup_blit_shader(struct gl_context *ctx,
  *
  * \param VAO       Storage for vertex array object handle.  If 0, a new VAO
  *                  will be created.
- * \param VBO       Storage for vertex buffer object handle.  If 0, a new VBO
+ * \param buf_obj   Storage for vertex buffer object pointer.  If \c NULL, a new VBO
  *                  will be created.  The new VBO will have storage for 4
  *                  \c vertex structures.
  * \param use_generic_attributes  Should generic attributes 0 and 1 be used,
@@ -334,24 +334,37 @@ _mesa_meta_setup_blit_shader(struct gl_context *ctx,
  */
 void
 _mesa_meta_setup_vertex_objects(struct gl_context *ctx,
-                                GLuint *VAO, GLuint *VBO,
+                                GLuint *VAO, struct gl_buffer_object **buf_obj,
                                 bool use_generic_attributes,
                                 unsigned vertex_size, unsigned texcoord_size,
                                 unsigned color_size)
 {
+   GLuint VBO;
+
    if (*VAO == 0) {
-      assert(*VBO == 0);
+      assert(*buf_obj == NULL);
 
       /* create vertex array object */
       _mesa_GenVertexArrays(1, VAO);
       _mesa_BindVertexArray(*VAO);
 
       /* create vertex array buffer */
-      _mesa_GenBuffers(1, VBO);
-      _mesa_BindBuffer(GL_ARRAY_BUFFER, *VBO);
+      _mesa_GenBuffers(1, &VBO);
+      _mesa_BindBuffer(GL_ARRAY_BUFFER, VBO);
+      *buf_obj = _mesa_lookup_bufferobj(ctx, VBO);
+
+      /* _mesa_lookup_bufferobj only returns NULL if name is 0.  If the object
+       * does not yet exist (i.e., hasn't been bound) it will return a dummy
+       * object that you can't do anything with.
+       */
+      assert(*buf_obj != NULL && (*buf_obj)->Name == VBO);
+      assert(*buf_obj == ctx->Array.ArrayBufferObj);
+
       _mesa_BufferData(GL_ARRAY_BUFFER, 4 * sizeof(struct vertex), NULL,
                        GL_DYNAMIC_DRAW);
 
+      assert((*buf_obj)->Size == 4 * sizeof(struct vertex));
+
       /* setup vertex arrays */
       if (use_generic_attributes) {
          assert(color_size == 0);
@@ -1501,10 +1514,11 @@ _mesa_meta_setup_drawpix_texture(struct gl_context *ctx,
 
 void
 _mesa_meta_setup_ff_tnl_for_blit(struct gl_context *ctx,
-                                 GLuint *VAO, GLuint *VBO,
+                                 GLuint *VAO, struct gl_buffer_object **buf_obj,
                                  unsigned texcoord_size)
 {
-   _mesa_meta_setup_vertex_objects(ctx, VAO, VBO, false, 2, texcoord_size, 0);
+   _mesa_meta_setup_vertex_objects(ctx, VAO, buf_obj, false, 2, texcoord_size,
+                                   0);
 
    /* setup projection matrix */
    _mesa_MatrixMode(GL_PROJECTION);
@@ -1549,7 +1563,7 @@ meta_glsl_clear_init(struct gl_context *ctx, struct clear_state *clear)
    GLuint vs, fs;
    bool has_integer_textures;
 
-   _mesa_meta_setup_vertex_objects(ctx, &clear->VAO, &clear->VBO, true,
+   _mesa_meta_setup_vertex_objects(ctx, &clear->VAO, &clear->buf_obj, true,
                                    3, 0, 0);
 
    if (clear->ShaderProg != 0)
@@ -1637,8 +1651,8 @@ meta_glsl_clear_cleanup(struct clear_state *clear)
       return;
    _mesa_DeleteVertexArrays(1, &clear->VAO);
    clear->VAO = 0;
-   _mesa_DeleteBuffers(1, &clear->VBO);
-   clear->VBO = 0;
+   _mesa_DeleteBuffers(1, &clear->buf_obj->Name);
+   clear->buf_obj = NULL;
    _mesa_DeleteProgram(clear->ShaderProg);
    clear->ShaderProg = 0;
 
@@ -1746,7 +1760,7 @@ meta_clear(struct gl_context *ctx, GLbitfield buffers, bool glsl)
       y1 = ((float) fb->_Ymax / fb->Height) * 2.0f - 1.0f;
       z = -invert_z(ctx->Depth.Clear);
    } else {
-      _mesa_meta_setup_vertex_objects(ctx, &clear->VAO, &clear->VBO, false,
+      _mesa_meta_setup_vertex_objects(ctx, &clear->VAO, &clear->buf_obj, false,
                                       3, 0, 4);
 
       x0 = (float) fb->_Xmin;
@@ -1830,7 +1844,8 @@ meta_clear(struct gl_context *ctx, GLbitfield buffers, bool glsl)
    }
 
    /* upload new vertex data */
-   _mesa_NamedBufferData(clear->VBO, sizeof(verts), verts, GL_DYNAMIC_DRAW);
+   _mesa_buffer_data(ctx, clear->buf_obj, GL_NONE, sizeof(verts), verts,
+                     GL_DYNAMIC_DRAW, __func__);
 
    /* draw quad(s) */
    if (fb->MaxNumLayers > 0) {
@@ -1876,7 +1891,7 @@ _mesa_meta_CopyPixels(struct gl_context *ctx, GLint srcX, GLint srcY,
                           MESA_META_VERTEX |
                           MESA_META_VIEWPORT));
 
-   _mesa_meta_setup_vertex_objects(ctx, &copypix->VAO, &copypix->VBO, false,
+   _mesa_meta_setup_vertex_objects(ctx, &copypix->VAO, &copypix->buf_obj, false,
                                    3, 2, 0);
 
    /* Silence valgrind warnings about reading uninitialized stack. */
@@ -1916,7 +1931,8 @@ _mesa_meta_CopyPixels(struct gl_context *ctx, GLint srcX, GLint srcY,
       verts[3].tex[1] = tex->Ttop;
 
       /* upload new vertex data */
-      _mesa_NamedBufferSubData(copypix->VBO, 0, sizeof(verts), verts);
+      _mesa_buffer_sub_data(ctx, copypix->buf_obj, 0, sizeof(verts), verts,
+                            __func__);
    }
 
    _mesa_set_enable(ctx, tex->Target, GL_TRUE);
@@ -1936,8 +1952,8 @@ meta_drawpix_cleanup(struct drawpix_state *drawpix)
       _mesa_DeleteVertexArrays(1, &drawpix->VAO);
       drawpix->VAO = 0;
 
-      _mesa_DeleteBuffers(1, &drawpix->VBO);
-      drawpix->VBO = 0;
+      _mesa_DeleteBuffers(1, &drawpix->buf_obj->Name);
+      drawpix->buf_obj = NULL;
    }
 
    if (drawpix->StencilFP != 0) {
@@ -2197,7 +2213,7 @@ _mesa_meta_DrawPixels(struct gl_context *ctx,
 
    newTex = _mesa_meta_alloc_texture(tex, width, height, texIntFormat);
 
-   _mesa_meta_setup_vertex_objects(ctx, &drawpix->VAO, &drawpix->VBO, false,
+   _mesa_meta_setup_vertex_objects(ctx, &drawpix->VAO, &drawpix->buf_obj, false,
                                    3, 2, 0);
 
    /* Silence valgrind warnings about reading uninitialized stack. */
@@ -2234,7 +2250,8 @@ _mesa_meta_DrawPixels(struct gl_context *ctx,
    }
 
    /* upload new vertex data */
-   _mesa_NamedBufferData(drawpix->VBO, sizeof(verts), verts, GL_DYNAMIC_DRAW);
+   _mesa_buffer_data(ctx, drawpix->buf_obj, GL_NONE, sizeof(verts), verts,
+                     GL_DYNAMIC_DRAW, __func__);
 
    /* set given unpack params */
    ctx->Unpack = *unpack;
@@ -2389,7 +2406,7 @@ _mesa_meta_Bitmap(struct gl_context *ctx,
                           MESA_META_VERTEX |
                           MESA_META_VIEWPORT));
 
-   _mesa_meta_setup_vertex_objects(ctx, &bitmap->VAO, &bitmap->VBO, false,
+   _mesa_meta_setup_vertex_objects(ctx, &bitmap->VAO, &bitmap->buf_obj, false,
                                    3, 2, 4);
 
    newTex = _mesa_meta_alloc_texture(tex, width, height, texIntFormat);
@@ -2435,7 +2452,8 @@ _mesa_meta_Bitmap(struct gl_context *ctx,
       }
 
       /* upload new vertex data */
-      _mesa_NamedBufferSubData(bitmap->VBO, 0, sizeof(verts), verts);
+      _mesa_buffer_sub_data(ctx, bitmap->buf_obj, 0, sizeof(verts), verts,
+                            __func__);
    }
 
    /* choose different foreground/background alpha values */
@@ -2971,7 +2989,7 @@ meta_decompress_cleanup(struct decompress_state *decompress)
 
    if (decompress->VAO != 0) {
       _mesa_DeleteVertexArrays(1, &decompress->VAO);
-      _mesa_DeleteBuffers(1, &decompress->VBO);
+      _mesa_DeleteBuffers(1, &decompress->buf_obj->Name);
    }
 
    if (decompress->Sampler != 0)
@@ -3091,12 +3109,14 @@ decompress_texture_image(struct gl_context *ctx,
    }
 
    if (use_glsl_version) {
-      _mesa_meta_setup_vertex_objects(ctx, &decompress->VAO, &decompress->VBO, true,
+      _mesa_meta_setup_vertex_objects(ctx, &decompress->VAO,
+                                      &decompress->buf_obj, true,
                                       2, 4, 0);
 
       _mesa_meta_setup_blit_shader(ctx, target, false, &decompress->shaders);
    } else {
-      _mesa_meta_setup_ff_tnl_for_blit(ctx, &decompress->VAO, &decompress->VBO, 3);
+      _mesa_meta_setup_ff_tnl_for_blit(ctx, &decompress->VAO,
+                                       &decompress->buf_obj, 3);
    }
 
    if (!decompress->Sampler) {
@@ -3140,7 +3160,8 @@ decompress_texture_image(struct gl_context *ctx,
    _mesa_set_viewport(ctx, 0, 0, 0, width, height);
 
    /* upload new vertex data */
-   _mesa_NamedBufferSubData(decompress->VBO, 0, sizeof(verts), verts);
+   _mesa_buffer_sub_data(ctx, decompress->buf_obj, 0, sizeof(verts), verts,
+                         __func__);
 
    /* setup texture state */
    _mesa_BindTexture(target, texObj->Name);
diff --git a/src/mesa/drivers/common/meta.h b/src/mesa/drivers/common/meta.h
index 48607d4..6df76ae 100644
--- a/src/mesa/drivers/common/meta.h
+++ b/src/mesa/drivers/common/meta.h
@@ -300,7 +300,7 @@ enum blit_msaa_shader {
 struct blit_state
 {
    GLuint VAO;
-   GLuint VBO;
+   struct gl_buffer_object *buf_obj;
    struct blit_shader_table shaders_with_depth;
    struct blit_shader_table shaders_without_depth;
    GLuint msaa_shaders[BLIT_MSAA_SHADER_COUNT];
@@ -322,7 +322,7 @@ struct fb_tex_blit_state
 struct clear_state
 {
    GLuint VAO;
-   GLuint VBO;
+   struct gl_buffer_object *buf_obj;
    GLuint ShaderProg;
    GLint ColorLocation;
    GLint LayerLocation;
@@ -339,7 +339,7 @@ struct clear_state
 struct copypix_state
 {
    GLuint VAO;
-   GLuint VBO;
+   struct gl_buffer_object *buf_obj;
 };
 
 
@@ -349,7 +349,7 @@ struct copypix_state
 struct drawpix_state
 {
    GLuint VAO;
-   GLuint VBO;
+   struct gl_buffer_object *buf_obj;
 
    GLuint StencilFP;  /**< Fragment program for drawing stencil images */
    GLuint DepthFP;  /**< Fragment program for drawing depth images */
@@ -362,7 +362,7 @@ struct drawpix_state
 struct bitmap_state
 {
    GLuint VAO;
-   GLuint VBO;
+   struct gl_buffer_object *buf_obj;
    struct temp_texture Tex;  /**< separate texture from other meta ops */
 };
 
@@ -372,7 +372,7 @@ struct bitmap_state
 struct gen_mipmap_state
 {
    GLuint VAO;
-   GLuint VBO;
+   struct gl_buffer_object *buf_obj;
    GLuint FBO;
    GLuint Sampler;
 
@@ -396,7 +396,8 @@ struct decompress_state
 {
    GLuint VAO;
    struct decompress_fbo_state byteFBO, floatFBO;
-   GLuint VBO, Sampler;
+   struct gl_buffer_object *buf_obj;
+   GLuint Sampler;
 
    struct blit_shader_table shaders;
 };
@@ -621,14 +622,14 @@ _mesa_meta_get_temp_depth_texture(struct gl_context *ctx);
 
 void
 _mesa_meta_setup_vertex_objects(struct gl_context *ctx,
-                                GLuint *VAO, GLuint *VBO,
+                                GLuint *VAO, struct gl_buffer_object **buf_obj,
                                 bool use_generic_attributes,
                                 unsigned vertex_size, unsigned texcoord_size,
                                 unsigned color_size);
 
 void
 _mesa_meta_setup_ff_tnl_for_blit(struct gl_context *ctx,
-                                 GLuint *VAO, GLuint *VBO,
+                                 GLuint *VAO, struct gl_buffer_object **buf_obj,
                                  unsigned texcoord_size);
 
 void
diff --git a/src/mesa/drivers/common/meta_blit.c b/src/mesa/drivers/common/meta_blit.c
index 84c8130..37b06bc 100644
--- a/src/mesa/drivers/common/meta_blit.c
+++ b/src/mesa/drivers/common/meta_blit.c
@@ -565,7 +565,7 @@ setup_glsl_blit_framebuffer(struct gl_context *ctx,
 
    texcoord_size = 2 + (src_rb->Depth > 1 ? 1 : 0);
 
-   _mesa_meta_setup_vertex_objects(ctx, &blit->VAO, &blit->VBO, true,
+   _mesa_meta_setup_vertex_objects(ctx, &blit->VAO, &blit->buf_obj, true,
                                    2, texcoord_size, 0);
 
    if (is_target_multisample && is_filter_scaled_resolve && is_scaled_blit) {
@@ -693,7 +693,7 @@ blitframebuffer_texture(struct gl_context *ctx,
    else {
       _mesa_meta_setup_ff_tnl_for_blit(ctx,
                                        &ctx->Meta->Blit.VAO,
-                                       &ctx->Meta->Blit.VBO,
+                                       &ctx->Meta->Blit.buf_obj,
                                        2);
    }
 
@@ -790,7 +790,8 @@ blitframebuffer_texture(struct gl_context *ctx,
       verts[3].tex[1] = t1;
       verts[3].tex[2] = readAtt->Zoffset;
 
-      _mesa_NamedBufferSubData(blit->VBO, 0, sizeof(verts), verts);
+      _mesa_buffer_sub_data(ctx, blit->buf_obj, 0, sizeof(verts), verts,
+                            __func__);
    }
 
    /* setup viewport */
@@ -1010,8 +1011,8 @@ _mesa_meta_glsl_blit_cleanup(struct blit_state *blit)
    if (blit->VAO) {
       _mesa_DeleteVertexArrays(1, &blit->VAO);
       blit->VAO = 0;
-      _mesa_DeleteBuffers(1, &blit->VBO);
-      blit->VBO = 0;
+      _mesa_DeleteBuffers(1, &blit->buf_obj->Name);
+      blit->buf_obj = NULL;
    }
 
    _mesa_meta_blit_shader_table_cleanup(&blit->shaders_with_depth);
diff --git a/src/mesa/drivers/common/meta_generate_mipmap.c b/src/mesa/drivers/common/meta_generate_mipmap.c
index 28fc5eb..97a4297 100644
--- a/src/mesa/drivers/common/meta_generate_mipmap.c
+++ b/src/mesa/drivers/common/meta_generate_mipmap.c
@@ -126,8 +126,8 @@ _mesa_meta_glsl_generate_mipmap_cleanup(struct gen_mipmap_state *mipmap)
       return;
    _mesa_DeleteVertexArrays(1, &mipmap->VAO);
    mipmap->VAO = 0;
-   _mesa_DeleteBuffers(1, &mipmap->VBO);
-   mipmap->VBO = 0;
+   _mesa_DeleteBuffers(1, &mipmap->buf_obj->Name);
+   mipmap->buf_obj->Name = NULL;
    _mesa_DeleteSamplers(1, &mipmap->Sampler);
    mipmap->Sampler = 0;
 
@@ -196,11 +196,11 @@ _mesa_meta_GenerateMipmap(struct gl_context *ctx, GLenum target,
     * GenerateMipmap function.
     */
    if (use_glsl_version) {
-      _mesa_meta_setup_vertex_objects(ctx, &mipmap->VAO, &mipmap->VBO, true,
+      _mesa_meta_setup_vertex_objects(ctx, &mipmap->VAO, &mipmap->buf_obj, true,
                                       2, 4, 0);
       _mesa_meta_setup_blit_shader(ctx, target, false, &mipmap->shaders);
    } else {
-      _mesa_meta_setup_ff_tnl_for_blit(ctx, &mipmap->VAO, &mipmap->VBO, 3);
+      _mesa_meta_setup_ff_tnl_for_blit(ctx, &mipmap->VAO, &mipmap->buf_obj, 3);
       _mesa_set_enable(ctx, target, GL_TRUE);
    }
 
@@ -335,8 +335,8 @@ _mesa_meta_GenerateMipmap(struct gl_context *ctx, GLenum target,
                                          verts[3].tex);
 
          /* upload vertex data */
-         _mesa_NamedBufferData(mipmap->VBO, sizeof(verts), verts,
-                               GL_DYNAMIC_DRAW);
+         _mesa_buffer_data(ctx, mipmap->buf_obj, GL_NONE, sizeof(verts), verts,
+                           GL_DYNAMIC_DRAW, __func__);
 
          _mesa_meta_bind_fbo_image(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, dstImage, layer);
 
diff --git a/src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c b/src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c
index 8f7b072..dc07379 100644
--- a/src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c
+++ b/src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c
@@ -286,7 +286,8 @@ setup_program(struct brw_context *brw, bool msaa_tex)
    char *fs_source;
    const struct sampler_and_fetch *sampler = &samplers[msaa_tex];
 
-   _mesa_meta_setup_vertex_objects(ctx, &blit->VAO, &blit->VBO, true, 2, 2, 0);
+   _mesa_meta_setup_vertex_objects(&brw->ctx, &blit->VAO, &blit->buf_obj, true,
+                                   2, 2, 0);
 
    GLuint *prog_id = &brw->meta_stencil_blit_programs[msaa_tex];
 
@@ -372,7 +373,7 @@ adjust_mip_level(const struct intel_mipmap_tree *mt,
 }
 
 static void
-prepare_vertex_data(GLuint vbo)
+prepare_vertex_data(struct gl_context *ctx, struct gl_buffer_object *buf_obj)
 {
    static const struct vertex verts[] = {
       { .x = -1.0f, .y = -1.0f },
@@ -380,7 +381,7 @@ prepare_vertex_data(GLuint vbo)
       { .x =  1.0f, .y =  1.0f },
       { .x = -1.0f, .y =  1.0f } };
 
-   _mesa_NamedBufferSubData(vbo, 0, sizeof(verts), verts);
+   _mesa_buffer_sub_data(ctx, buf_obj, 0, sizeof(verts), verts, __func__);
 }
 
 static bool
@@ -460,7 +461,7 @@ brw_meta_stencil_blit(struct brw_context *brw,
    _mesa_Uniform1i(_mesa_GetUniformLocation(prog, "dst_num_samples"),
                    dst_mt->num_samples);
 
-   prepare_vertex_data(ctx->Meta->Blit.VBO);
+   prepare_vertex_data(ctx, ctx->Meta->Blit.buf_obj);
    _mesa_set_viewport(ctx, 0, dims.dst_x0, dims.dst_y0,
                       dims.dst_x1 - dims.dst_x0, dims.dst_y1 - dims.dst_y0);
    _mesa_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);