blob: 06edbd6bbb2eb9581a4a7b390155f4b0db874974 [file] [log] [blame]
// Copyright 2019 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "starboard/shared/blittergles/blitter_surface.h"
#include <GLES2/gl2.h>
#include "starboard/common/log.h"
#include "starboard/shared/blittergles/blitter_context.h"
#include "starboard/shared/blittergles/blitter_internal.h"
#include "starboard/shared/gles/gl_call.h"
SbBlitterSurfacePrivate::~SbBlitterSurfacePrivate() {
GL_CALL(glDeleteTextures(1, &color_texture_handle));
if (render_target != NULL) {
GL_CALL(glDeleteFramebuffers(1, &render_target->framebuffer_handle));
delete render_target;
}
}
bool SbBlitterSurfacePrivate::SetTexture(void* pixel_data) {
SbBlitterContextPrivate::ScopedCurrentContext scoped_current_context;
if (scoped_current_context.InitializationError()) {
return false;
}
glGenTextures(1, &color_texture_handle);
if (color_texture_handle == 0) {
SB_DLOG(ERROR) << ": Error creating new texture.";
return false;
}
glBindTexture(GL_TEXTURE_2D, color_texture_handle);
if (glGetError() != GL_NO_ERROR) {
GL_CALL(glDeleteTextures(1, &color_texture_handle));
color_texture_handle = 0;
SB_DLOG(ERROR) << ": Error binding new texture.";
return false;
}
GL_CALL(glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
GL_CALL(glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
GL_CALL(glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
GLint pixel_format =
info.format == kSbBlitterSurfaceFormatRGBA8 ? GL_RGBA : GL_ALPHA;
GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1));
glTexImage2D(GL_TEXTURE_2D, 0, pixel_format, info.width, info.height, 0,
pixel_format, GL_UNSIGNED_BYTE, pixel_data);
if (glGetError() != GL_NO_ERROR) {
GL_CALL(glDeleteTextures(1, &color_texture_handle));
color_texture_handle = 0;
SB_DLOG(ERROR) << ": Error allocating new texture backing.";
return false;
}
GL_CALL(glBindTexture(GL_TEXTURE_2D, 0));
return true;
}