only upload data to texture if *data is not NULL
refactor create_shader_texture(path) to use the other create_shader_texture(name, data, width. height, channels)
This commit is contained in:
Sven Balzer
parent
cdf6cf00a8
commit
fc88859eaf
228
src/main.cpp
228
src/main.cpp
@ -372,110 +372,6 @@ static void change_map_size(char direction, int amount) {
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SDL_ReleaseGPUBuffer(device, old_world_buffer);
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}
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static SDL_GPUTexture *create_shader_texture(const char *path) {
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int width = 0, height = 0, channels = 0;
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stbi_uc *data = stbi_load(path, &width, &height, &channels, 0);
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if (!data) {
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log_error("Failed to load texture (\"%s\").", path);
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return NULL;
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}
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SDL_GPUTextureFormat format = SDL_GPU_TEXTUREFORMAT_INVALID;
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if (channels == 1) format = SDL_GPU_TEXTUREFORMAT_A8_UNORM;
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if (channels == 4) format = SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM_SRGB;
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if (format == SDL_GPU_TEXTUREFORMAT_INVALID) {
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log_error("Failed to find texture format for texture (\"%s\").", path);
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stbi_image_free(data);
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return NULL;
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}
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SDL_PropertiesID properties = SDL_CreateProperties();
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if (properties) SDL_SetStringProperty(properties, SDL_PROP_GPU_TEXTURE_CREATE_NAME_STRING, path);
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SDL_GPUTextureCreateInfo texture_info = {
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.type = SDL_GPU_TEXTURETYPE_2D,
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.format = format,
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.usage = SDL_GPU_TEXTUREUSAGE_SAMPLER,
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.width = (Uint32)width,
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.height = (Uint32)height,
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.layer_count_or_depth = 1,
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.num_levels = 1,
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.props = properties,
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};
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SDL_GPUTexture *texture = SDL_CreateGPUTexture(device, &texture_info);
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if (!texture) {
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log_error("Failed to create gpu texture (%s).", SDL_GetError());
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stbi_image_free(data);
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return NULL;
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}
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if (properties) SDL_DestroyProperties(properties);
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Uint32 upload_size = width * height * channels;
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SDL_GPUTransferBufferCreateInfo transfer_buffer_info = {
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.usage = SDL_GPU_TRANSFERBUFFERUSAGE_UPLOAD,
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.size = upload_size,
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};
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SDL_GPUTransferBuffer *transfer_buffer = SDL_CreateGPUTransferBuffer(device, &transfer_buffer_info);
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if (!transfer_buffer) {
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log_error("Failed to create gpu transfer buffer (%s).", SDL_GetError());
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SDL_ReleaseGPUTexture(device, texture);
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stbi_image_free(data);
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return NULL;
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}
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void *transfer_data = SDL_MapGPUTransferBuffer(device, transfer_buffer, false);
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if (!transfer_data) {
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log_error("Failed to map gpu transfer buffer (%s).", SDL_GetError());
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SDL_ReleaseGPUTransferBuffer(device, transfer_buffer);
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SDL_ReleaseGPUTexture(device, texture);
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stbi_image_free(data);
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return NULL;
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}
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memcpy(transfer_data, data, upload_size);
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SDL_UnmapGPUTransferBuffer(device, transfer_buffer);
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stbi_image_free(data);
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SDL_GPUTextureTransferInfo transfer_info = {
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.transfer_buffer = transfer_buffer,
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.pixels_per_row = (Uint32)width,
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};
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SDL_GPUTextureRegion tetxure_region = {
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.texture = texture,
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.w = (Uint32)width,
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.h = (Uint32)height,
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.d = 1,
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};
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SDL_GPUCommandBuffer *command_buffer = SDL_AcquireGPUCommandBuffer(device);
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if (!command_buffer) {
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log_error("Failed to acquire gpu command buffer (%s).", SDL_GetError());
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SDL_ReleaseGPUTransferBuffer(device, transfer_buffer);
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SDL_ReleaseGPUTexture(device, texture);
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return NULL;
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}
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SDL_GPUCopyPass *copy_pass = SDL_BeginGPUCopyPass(command_buffer);
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SDL_UploadToGPUTexture(copy_pass, &transfer_info, &tetxure_region, false);
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SDL_EndGPUCopyPass(copy_pass);
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if (!SDL_SubmitGPUCommandBuffer(command_buffer)) {
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log_error("Failed to submit gpu command buffer (%s).", SDL_GetError());
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SDL_ReleaseGPUTransferBuffer(device, transfer_buffer);
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SDL_ReleaseGPUTexture(device, texture);
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SDL_CancelGPUCommandBuffer(command_buffer);
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return NULL;
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}
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SDL_ReleaseGPUTransferBuffer(device, transfer_buffer);
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return texture;
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}
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static SDL_GPUTexture *create_shader_texture(const char *name, const char *data, int width, int height, int channels) {
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SDL_GPUTextureFormat format = SDL_GPU_TEXTUREFORMAT_INVALID;
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if (channels == 1) format = SDL_GPU_TEXTUREFORMAT_A8_UNORM;
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@ -509,65 +405,87 @@ static SDL_GPUTexture *create_shader_texture(const char *name, const char *data,
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}
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if (properties) SDL_DestroyProperties(properties);
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Uint32 upload_size = width * height * channels;
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SDL_GPUTransferBufferCreateInfo transfer_buffer_info = {
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.usage = SDL_GPU_TRANSFERBUFFERUSAGE_UPLOAD,
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.size = upload_size,
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};
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if (data) {
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Uint32 upload_size = width * height * channels;
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SDL_GPUTransferBufferCreateInfo transfer_buffer_info = {
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.usage = SDL_GPU_TRANSFERBUFFERUSAGE_UPLOAD,
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.size = upload_size,
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};
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SDL_GPUTransferBuffer *transfer_buffer = SDL_CreateGPUTransferBuffer(device, &transfer_buffer_info);
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if (!transfer_buffer) {
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log_error("Failed to create gpu transfer buffer (%s).", SDL_GetError());
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SDL_ReleaseGPUTexture(device, texture);
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return NULL;
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}
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SDL_GPUTransferBuffer *transfer_buffer = SDL_CreateGPUTransferBuffer(device, &transfer_buffer_info);
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if (!transfer_buffer) {
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log_error("Failed to create gpu transfer buffer (%s).", SDL_GetError());
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SDL_ReleaseGPUTexture(device, texture);
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return NULL;
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}
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void *transfer_data = SDL_MapGPUTransferBuffer(device, transfer_buffer, false);
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if (!transfer_data) {
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log_error("Failed to map gpu transfer buffer (%s).", SDL_GetError());
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SDL_ReleaseGPUTransferBuffer(device, transfer_buffer);
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SDL_ReleaseGPUTexture(device, texture);
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return NULL;
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}
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memcpy(transfer_data, data, upload_size);
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SDL_UnmapGPUTransferBuffer(device, transfer_buffer);
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SDL_GPUTextureTransferInfo transfer_info = {
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.transfer_buffer = transfer_buffer,
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.pixels_per_row = (Uint32)width,
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};
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SDL_GPUTextureRegion tetxure_region = {
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.texture = texture,
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.w = (Uint32)width,
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.h = (Uint32)height,
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.d = 1,
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};
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SDL_GPUCommandBuffer *command_buffer = SDL_AcquireGPUCommandBuffer(device);
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if (!command_buffer) {
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log_error("Failed to acquire gpu command buffer (%s).", SDL_GetError());
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SDL_ReleaseGPUTransferBuffer(device, transfer_buffer);
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SDL_ReleaseGPUTexture(device, texture);
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return NULL;
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}
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SDL_GPUCopyPass *copy_pass = SDL_BeginGPUCopyPass(command_buffer);
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SDL_UploadToGPUTexture(copy_pass, &transfer_info, &tetxure_region, false);
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SDL_EndGPUCopyPass(copy_pass);
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if (!SDL_SubmitGPUCommandBuffer(command_buffer)) {
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log_error("Failed to submit gpu command buffer (%s).", SDL_GetError());
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SDL_ReleaseGPUTransferBuffer(device, transfer_buffer);
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SDL_ReleaseGPUTexture(device, texture);
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SDL_CancelGPUCommandBuffer(command_buffer);
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return NULL;
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}
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void *transfer_data = SDL_MapGPUTransferBuffer(device, transfer_buffer, false);
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if (!transfer_data) {
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log_error("Failed to map gpu transfer buffer (%s).", SDL_GetError());
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SDL_ReleaseGPUTransferBuffer(device, transfer_buffer);
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SDL_ReleaseGPUTexture(device, texture);
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return NULL;
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}
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memcpy(transfer_data, data, upload_size);
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SDL_UnmapGPUTransferBuffer(device, transfer_buffer);
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SDL_GPUTextureTransferInfo transfer_info = {
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.transfer_buffer = transfer_buffer,
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.pixels_per_row = (Uint32)width,
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};
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SDL_GPUTextureRegion tetxure_region = {
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.texture = texture,
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.w = (Uint32)width,
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.h = (Uint32)height,
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.d = 1,
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};
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SDL_GPUCommandBuffer *command_buffer = SDL_AcquireGPUCommandBuffer(device);
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if (!command_buffer) {
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log_error("Failed to acquire gpu command buffer (%s).", SDL_GetError());
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SDL_ReleaseGPUTransferBuffer(device, transfer_buffer);
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SDL_ReleaseGPUTexture(device, texture);
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return NULL;
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}
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SDL_GPUCopyPass *copy_pass = SDL_BeginGPUCopyPass(command_buffer);
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SDL_UploadToGPUTexture(copy_pass, &transfer_info, &tetxure_region, false);
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SDL_EndGPUCopyPass(copy_pass);
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if (!SDL_SubmitGPUCommandBuffer(command_buffer)) {
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log_error("Failed to submit gpu command buffer (%s).", SDL_GetError());
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SDL_ReleaseGPUTransferBuffer(device, transfer_buffer);
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SDL_ReleaseGPUTexture(device, texture);
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SDL_CancelGPUCommandBuffer(command_buffer);
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return NULL;
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}
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SDL_ReleaseGPUTransferBuffer(device, transfer_buffer);
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return texture;
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}
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static SDL_GPUTexture *create_shader_texture(const char *path) {
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int width = 0, height = 0, channels = 0;
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stbi_uc *data = stbi_load(path, &width, &height, &channels, 0);
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if (!data) {
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log_error("Failed to load texture (\"%s\").", path);
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return NULL;
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}
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SDL_GPUTexture *result = create_shader_texture(path, (char *)data, width, height, channels);
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if (!result) {
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log_error("Failed to load texture (\"%s\").", path);
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stbi_image_free(data);
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return NULL;
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}
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stbi_image_free(data);
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return result;
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}
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static void blit(char *dst, Sint32 dst_pitch, Sint32 dst_x, Sint32 dst_y, char *src, Sint32 src_pitch, Sint32 width, Sint32 height, int components = 4) {
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for (Sint32 y = 0; y < height; y++)
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memmove(&dst[((dst_y + y) * dst_pitch + dst_x) * components], &src[y * src_pitch * components], width * components);
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