/* * Cogl * * A Low-Level GPU Graphics and Utilities API * * Copyright (C) 2010 Intel Corporation. * * 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, sublicense, 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 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 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * 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. * * * * Authors: * Neil Roberts */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "cogl-private.h" #include "cogl-util.h" #include "cogl-texture-private.h" #include "cogl-texture-rectangle-private.h" #include "cogl-texture-driver.h" #include "cogl-context-private.h" #include "cogl-object-private.h" #include "cogl-journal-private.h" #include "cogl-pipeline-opengl-private.h" #include "cogl-error-private.h" #include "cogl-util-gl-private.h" #include #include /* These aren't defined under GLES */ #ifndef GL_TEXTURE_RECTANGLE_ARB #define GL_TEXTURE_RECTANGLE_ARB 0x84F5 #endif #ifndef GL_CLAMP #define GL_CLAMP 0x2900 #endif #ifndef GL_CLAMP_TO_BORDER #define GL_CLAMP_TO_BORDER 0x812D #endif static void _cogl_texture_rectangle_free (CoglTextureRectangle *tex_rect); COGL_TEXTURE_DEFINE (TextureRectangle, texture_rectangle); static const CoglTextureVtable cogl_texture_rectangle_vtable; static CoglBool can_use_wrap_mode (GLenum wrap_mode) { return (wrap_mode == GL_CLAMP || wrap_mode == GL_CLAMP_TO_EDGE || wrap_mode == GL_CLAMP_TO_BORDER); } static void _cogl_texture_rectangle_gl_flush_legacy_texobj_wrap_modes (CoglTexture *tex, GLenum wrap_mode_s, GLenum wrap_mode_t, GLenum wrap_mode_p) { CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex); CoglContext *ctx = tex->context; /* Only set the wrap mode if it's different from the current value to avoid too many GL calls. Texture rectangle doesn't make use of the r coordinate so we can ignore its wrap mode */ if (tex_rect->gl_legacy_texobj_wrap_mode_s != wrap_mode_s || tex_rect->gl_legacy_texobj_wrap_mode_t != wrap_mode_t) { g_assert (can_use_wrap_mode (wrap_mode_s)); g_assert (can_use_wrap_mode (wrap_mode_t)); _cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB, tex_rect->gl_texture, tex_rect->is_foreign); GE( ctx, glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, wrap_mode_s) ); GE( ctx, glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, wrap_mode_t) ); tex_rect->gl_legacy_texobj_wrap_mode_s = wrap_mode_s; tex_rect->gl_legacy_texobj_wrap_mode_t = wrap_mode_t; } } static void _cogl_texture_rectangle_free (CoglTextureRectangle *tex_rect) { if (!tex_rect->is_foreign && tex_rect->gl_texture) _cogl_delete_gl_texture (tex_rect->gl_texture); /* Chain up */ _cogl_texture_free (COGL_TEXTURE (tex_rect)); } static CoglBool _cogl_texture_rectangle_can_create (CoglContext *ctx, unsigned int width, unsigned int height, CoglPixelFormat internal_format, CoglError **error) { GLenum gl_intformat; GLenum gl_format; GLenum gl_type; if (!cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_RECTANGLE)) { _cogl_set_error (error, COGL_TEXTURE_ERROR, COGL_TEXTURE_ERROR_TYPE, "The CoglTextureRectangle feature isn't available"); return FALSE; } ctx->driver_vtable->pixel_format_to_gl (ctx, internal_format, &gl_intformat, &gl_format, &gl_type); /* Check that the driver can create a texture with that size */ if (!ctx->texture_driver->size_supported (ctx, GL_TEXTURE_RECTANGLE_ARB, gl_intformat, gl_format, gl_type, width, height)) { _cogl_set_error (error, COGL_TEXTURE_ERROR, COGL_TEXTURE_ERROR_SIZE, "The requested texture size + format is unsupported"); return FALSE; } return TRUE; } static void _cogl_texture_rectangle_set_auto_mipmap (CoglTexture *tex, CoglBool value) { /* Rectangle textures currently never support mipmapping so there's no point in doing anything here */ } static CoglTextureRectangle * _cogl_texture_rectangle_create_base (CoglContext *ctx, int width, int height, CoglPixelFormat internal_format, CoglTextureLoader *loader) { CoglTextureRectangle *tex_rect = g_new (CoglTextureRectangle, 1); CoglTexture *tex = COGL_TEXTURE (tex_rect); _cogl_texture_init (tex, ctx, width, height, internal_format, loader, &cogl_texture_rectangle_vtable); tex_rect->gl_texture = 0; tex_rect->is_foreign = FALSE; /* We default to GL_LINEAR for both filters */ tex_rect->gl_legacy_texobj_min_filter = GL_LINEAR; tex_rect->gl_legacy_texobj_mag_filter = GL_LINEAR; /* Wrap mode not yet set */ tex_rect->gl_legacy_texobj_wrap_mode_s = GL_FALSE; tex_rect->gl_legacy_texobj_wrap_mode_t = GL_FALSE; return _cogl_texture_rectangle_object_new (tex_rect); } CoglTextureRectangle * cogl_texture_rectangle_new_with_size (CoglContext *ctx, int width, int height) { CoglTextureLoader *loader = _cogl_texture_create_loader (); loader->src_type = COGL_TEXTURE_SOURCE_TYPE_SIZED; loader->src.sized.width = width; loader->src.sized.height = height; return _cogl_texture_rectangle_create_base (ctx, width, height, COGL_PIXEL_FORMAT_RGBA_8888_PRE, loader); } static CoglBool allocate_with_size (CoglTextureRectangle *tex_rect, CoglTextureLoader *loader, CoglError **error) { CoglTexture *tex = COGL_TEXTURE (tex_rect); CoglContext *ctx = tex->context; CoglPixelFormat internal_format; int width = loader->src.sized.width; int height = loader->src.sized.height; GLenum gl_intformat; GLenum gl_format; GLenum gl_type; GLenum gl_error; GLenum gl_texture; internal_format = _cogl_texture_determine_internal_format (tex, COGL_PIXEL_FORMAT_ANY); if (!_cogl_texture_rectangle_can_create (ctx, width, height, internal_format, error)) return FALSE; ctx->driver_vtable->pixel_format_to_gl (ctx, internal_format, &gl_intformat, &gl_format, &gl_type); gl_texture = ctx->texture_driver->gen (ctx, GL_TEXTURE_RECTANGLE_ARB, internal_format); _cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB, gl_texture, tex_rect->is_foreign); /* Clear any GL errors */ while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR) ; ctx->glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, gl_intformat, width, height, 0, gl_format, gl_type, NULL); if (_cogl_gl_util_catch_out_of_memory (ctx, error)) { GE( ctx, glDeleteTextures (1, &gl_texture) ); return FALSE; } tex_rect->internal_format = internal_format; tex_rect->gl_texture = gl_texture; tex_rect->gl_format = gl_intformat; _cogl_texture_set_allocated (COGL_TEXTURE (tex_rect), internal_format, width, height); return TRUE; } static CoglBool allocate_from_bitmap (CoglTextureRectangle *tex_rect, CoglTextureLoader *loader, CoglError **error) { CoglTexture *tex = COGL_TEXTURE (tex_rect); CoglContext *ctx = tex->context; CoglPixelFormat internal_format; CoglBitmap *bmp = loader->src.bitmap.bitmap; int width = cogl_bitmap_get_width (bmp); int height = cogl_bitmap_get_height (bmp); CoglBool can_convert_in_place = loader->src.bitmap.can_convert_in_place; CoglBitmap *upload_bmp; GLenum gl_intformat; GLenum gl_format; GLenum gl_type; internal_format = _cogl_texture_determine_internal_format (tex, cogl_bitmap_get_format (bmp)); if (!_cogl_texture_rectangle_can_create (ctx, width, height, internal_format, error)) return FALSE; upload_bmp = _cogl_bitmap_convert_for_upload (bmp, internal_format, can_convert_in_place, error); if (upload_bmp == NULL) return FALSE; ctx->driver_vtable->pixel_format_to_gl (ctx, cogl_bitmap_get_format (upload_bmp), NULL, /* internal format */ &gl_format, &gl_type); ctx->driver_vtable->pixel_format_to_gl (ctx, internal_format, &gl_intformat, NULL, NULL); tex_rect->gl_texture = ctx->texture_driver->gen (ctx, GL_TEXTURE_RECTANGLE_ARB, internal_format); if (!ctx->texture_driver->upload_to_gl (ctx, GL_TEXTURE_RECTANGLE_ARB, tex_rect->gl_texture, FALSE, upload_bmp, gl_intformat, gl_format, gl_type, error)) { cogl_object_unref (upload_bmp); return FALSE; } tex_rect->gl_format = gl_intformat; tex_rect->internal_format = internal_format; cogl_object_unref (upload_bmp); _cogl_texture_set_allocated (COGL_TEXTURE (tex_rect), internal_format, width, height); return TRUE; } static CoglBool allocate_from_gl_foreign (CoglTextureRectangle *tex_rect, CoglTextureLoader *loader, CoglError **error) { CoglTexture *tex = COGL_TEXTURE (tex_rect); CoglContext *ctx = tex->context; CoglPixelFormat format = loader->src.gl_foreign.format; GLenum gl_error = 0; GLint gl_compressed = GL_FALSE; GLenum gl_int_format = 0; if (!ctx->texture_driver->allows_foreign_gl_target (ctx, GL_TEXTURE_RECTANGLE_ARB)) { _cogl_set_error (error, COGL_SYSTEM_ERROR, COGL_SYSTEM_ERROR_UNSUPPORTED, "Foreign GL_TEXTURE_RECTANGLE textures are not " "supported by your system"); return FALSE; } /* Make sure binding succeeds */ while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR) ; _cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB, loader->src.gl_foreign.gl_handle, TRUE); if (ctx->glGetError () != GL_NO_ERROR) { _cogl_set_error (error, COGL_SYSTEM_ERROR, COGL_SYSTEM_ERROR_UNSUPPORTED, "Failed to bind foreign GL_TEXTURE_RECTANGLE texture"); return FALSE; } /* Obtain texture parameters */ #ifdef HAVE_COGL_GL if (_cogl_has_private_feature (ctx, COGL_PRIVATE_FEATURE_QUERY_TEXTURE_PARAMETERS)) { GLint val; GE( ctx, glGetTexLevelParameteriv (GL_TEXTURE_RECTANGLE_ARB, 0, GL_TEXTURE_COMPRESSED, &gl_compressed) ); GE( ctx, glGetTexLevelParameteriv (GL_TEXTURE_RECTANGLE_ARB, 0, GL_TEXTURE_INTERNAL_FORMAT, &val) ); gl_int_format = val; /* If we can query GL for the actual pixel format then we'll ignore the passed in format and use that. */ if (!ctx->driver_vtable->pixel_format_from_gl_internal (ctx, gl_int_format, &format)) { _cogl_set_error (error, COGL_SYSTEM_ERROR, COGL_SYSTEM_ERROR_UNSUPPORTED, "Unsupported internal format for foreign texture"); return FALSE; } } else #endif { /* Otherwise we'll assume we can derive the GL format from the passed in format */ ctx->driver_vtable->pixel_format_to_gl (ctx, format, &gl_int_format, NULL, NULL); } /* Compressed texture images not supported */ if (gl_compressed == GL_TRUE) { _cogl_set_error (error, COGL_SYSTEM_ERROR, COGL_SYSTEM_ERROR_UNSUPPORTED, "Compressed foreign textures aren't currently supported"); return FALSE; } /* Setup bitmap info */ tex_rect->is_foreign = TRUE; tex_rect->gl_texture = loader->src.gl_foreign.gl_handle; tex_rect->gl_format = gl_int_format; /* Unknown filter */ tex_rect->gl_legacy_texobj_min_filter = GL_FALSE; tex_rect->gl_legacy_texobj_mag_filter = GL_FALSE; tex_rect->internal_format = format; _cogl_texture_set_allocated (COGL_TEXTURE (tex_rect), format, loader->src.gl_foreign.width, loader->src.gl_foreign.height); return TRUE; } static CoglBool _cogl_texture_rectangle_allocate (CoglTexture *tex, CoglError **error) { CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex); CoglTextureLoader *loader = tex->loader; _COGL_RETURN_VAL_IF_FAIL (loader, FALSE); switch (loader->src_type) { case COGL_TEXTURE_SOURCE_TYPE_SIZED: return allocate_with_size (tex_rect, loader, error); case COGL_TEXTURE_SOURCE_TYPE_BITMAP: return allocate_from_bitmap (tex_rect, loader, error); case COGL_TEXTURE_SOURCE_TYPE_GL_FOREIGN: return allocate_from_gl_foreign (tex_rect, loader, error); default: break; } g_return_val_if_reached (FALSE); } CoglTextureRectangle * cogl_texture_rectangle_new_from_bitmap (CoglBitmap *bmp) { CoglTextureLoader *loader; _COGL_RETURN_VAL_IF_FAIL (cogl_is_bitmap (bmp), NULL); loader = _cogl_texture_create_loader (); loader->src_type = COGL_TEXTURE_SOURCE_TYPE_BITMAP; loader->src.bitmap.bitmap = cogl_object_ref (bmp); loader->src.bitmap.can_convert_in_place = FALSE; /* TODO add api for this */ return _cogl_texture_rectangle_create_base (_cogl_bitmap_get_context (bmp), cogl_bitmap_get_width (bmp), cogl_bitmap_get_height (bmp), cogl_bitmap_get_format (bmp), loader); } CoglTextureRectangle * cogl_texture_rectangle_new_from_foreign (CoglContext *ctx, unsigned int gl_handle, int width, int height, CoglPixelFormat format) { CoglTextureLoader *loader; /* NOTE: width, height and internal format are not queriable in * GLES, hence such a function prototype. Also in the case of full * opengl the user may be creating a Cogl texture for a * texture_from_pixmap object where glTexImage2D may not have been * called and the texture_from_pixmap spec doesn't clarify that it * is reliable to query back the size from OpenGL. */ /* Assert that it is a valid GL texture object */ _COGL_RETURN_VAL_IF_FAIL (ctx->glIsTexture (gl_handle), NULL); /* Validate width and height */ _COGL_RETURN_VAL_IF_FAIL (width > 0 && height > 0, NULL); loader = _cogl_texture_create_loader (); loader->src_type = COGL_TEXTURE_SOURCE_TYPE_GL_FOREIGN; loader->src.gl_foreign.gl_handle = gl_handle; loader->src.gl_foreign.width = width; loader->src.gl_foreign.height = height; loader->src.gl_foreign.format = format; return _cogl_texture_rectangle_create_base (ctx, width, height, format, loader); } static CoglBool _cogl_texture_rectangle_is_sliced (CoglTexture *tex) { return FALSE; } static CoglBool _cogl_texture_rectangle_can_hardware_repeat (CoglTexture *tex) { return FALSE; } static void _cogl_texture_rectangle_transform_coords_to_gl (CoglTexture *tex, float *s, float *t) { *s *= tex->width; *t *= tex->height; } static CoglTransformResult _cogl_texture_rectangle_transform_quad_coords_to_gl (CoglTexture *tex, float *coords) { CoglBool need_repeat = FALSE; int i; for (i = 0; i < 4; i++) { if (coords[i] < 0.0f || coords[i] > 1.0f) need_repeat = TRUE; coords[i] *= (i & 1) ? tex->height : tex->width; } return (need_repeat ? COGL_TRANSFORM_SOFTWARE_REPEAT : COGL_TRANSFORM_NO_REPEAT); } static CoglBool _cogl_texture_rectangle_get_gl_texture (CoglTexture *tex, GLuint *out_gl_handle, GLenum *out_gl_target) { CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex); if (out_gl_handle) *out_gl_handle = tex_rect->gl_texture; if (out_gl_target) *out_gl_target = GL_TEXTURE_RECTANGLE_ARB; return TRUE; } static void _cogl_texture_rectangle_gl_flush_legacy_texobj_filters (CoglTexture *tex, GLenum min_filter, GLenum mag_filter) { CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex); CoglContext *ctx = tex->context; if (min_filter == tex_rect->gl_legacy_texobj_min_filter && mag_filter == tex_rect->gl_legacy_texobj_mag_filter) return; /* Rectangle textures don't support mipmapping */ g_assert (min_filter == GL_LINEAR || min_filter == GL_NEAREST); /* Store new values */ tex_rect->gl_legacy_texobj_min_filter = min_filter; tex_rect->gl_legacy_texobj_mag_filter = mag_filter; /* Apply new filters to the texture */ _cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB, tex_rect->gl_texture, tex_rect->is_foreign); GE( ctx, glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, mag_filter) ); GE( ctx, glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, min_filter) ); } static void _cogl_texture_rectangle_pre_paint (CoglTexture *tex, CoglTexturePrePaintFlags flags) { /* Rectangle textures don't support mipmaps */ g_assert ((flags & COGL_TEXTURE_NEEDS_MIPMAP) == 0); } static void _cogl_texture_rectangle_ensure_non_quad_rendering (CoglTexture *tex) { /* Nothing needs to be done */ } static CoglBool _cogl_texture_rectangle_set_region (CoglTexture *tex, int src_x, int src_y, int dst_x, int dst_y, int dst_width, int dst_height, int level, CoglBitmap *bmp, CoglError **error) { CoglBitmap *upload_bmp; GLenum gl_format; GLenum gl_type; CoglContext *ctx = tex->context; CoglBool status; upload_bmp = _cogl_bitmap_convert_for_upload (bmp, _cogl_texture_get_format (tex), FALSE, /* can't convert in place */ error); if (upload_bmp == NULL) return FALSE; ctx->driver_vtable->pixel_format_to_gl (ctx, cogl_bitmap_get_format (upload_bmp), NULL, /* internal format */ &gl_format, &gl_type); /* Send data to GL */ status = ctx->texture_driver->upload_subregion_to_gl (ctx, tex, FALSE, src_x, src_y, dst_x, dst_y, dst_width, dst_height, level, upload_bmp, gl_format, gl_type, error); cogl_object_unref (upload_bmp); return status; } static CoglBool _cogl_texture_rectangle_get_data (CoglTexture *tex, CoglPixelFormat format, int rowstride, uint8_t *data) { CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex); CoglContext *ctx = tex->context; int bpp; GLenum gl_format; GLenum gl_type; bpp = _cogl_pixel_format_get_bytes_per_pixel (format); ctx->driver_vtable->pixel_format_to_gl (ctx, format, NULL, /* internal format */ &gl_format, &gl_type); ctx->texture_driver->prep_gl_for_pixels_download (ctx, rowstride, tex->width, bpp); _cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB, tex_rect->gl_texture, tex_rect->is_foreign); return ctx->texture_driver->gl_get_tex_image (ctx, GL_TEXTURE_RECTANGLE_ARB, gl_format, gl_type, data); } static CoglPixelFormat _cogl_texture_rectangle_get_format (CoglTexture *tex) { return COGL_TEXTURE_RECTANGLE (tex)->internal_format; } static GLenum _cogl_texture_rectangle_get_gl_format (CoglTexture *tex) { return COGL_TEXTURE_RECTANGLE (tex)->gl_format; } static CoglBool _cogl_texture_rectangle_is_foreign (CoglTexture *tex) { return COGL_TEXTURE_RECTANGLE (tex)->is_foreign; } static CoglTextureType _cogl_texture_rectangle_get_type (CoglTexture *tex) { return COGL_TEXTURE_TYPE_RECTANGLE; } static const CoglTextureVtable cogl_texture_rectangle_vtable = { TRUE, /* primitive */ _cogl_texture_rectangle_allocate, _cogl_texture_rectangle_set_region, _cogl_texture_rectangle_get_data, NULL, /* foreach_sub_texture_in_region */ _cogl_texture_rectangle_is_sliced, _cogl_texture_rectangle_can_hardware_repeat, _cogl_texture_rectangle_transform_coords_to_gl, _cogl_texture_rectangle_transform_quad_coords_to_gl, _cogl_texture_rectangle_get_gl_texture, _cogl_texture_rectangle_gl_flush_legacy_texobj_filters, _cogl_texture_rectangle_pre_paint, _cogl_texture_rectangle_ensure_non_quad_rendering, _cogl_texture_rectangle_gl_flush_legacy_texobj_wrap_modes, _cogl_texture_rectangle_get_format, _cogl_texture_rectangle_get_gl_format, _cogl_texture_rectangle_get_type, _cogl_texture_rectangle_is_foreign, _cogl_texture_rectangle_set_auto_mipmap };