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LibGL: Implement state for all pixel store parameters

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This implements the state and context parameters for all packing and
unpacking parameters accepted by `glPixelStore*`.
This commit is contained in:
Jelle Raaijmakers 2022-10-16 20:26:16 +02:00 • committed by Linus Groh
parent e2b151812e
commit fe5419da0f
3 changed files with 75 additions and 44 deletions
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48
Userland/Libraries/LibGL/GLContext.cpp
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@ -773,19 +773,49 @@ void GLContext::gl_fogi(GLenum pname, GLint param)
void GLContext::gl_pixel_storei(GLenum pname, GLint param)
{
// FIXME: Implement missing parameters
auto const is_packing_parameter = (pname >= GL_PACK_SWAP_BYTES && pname <= GL_PACK_ALIGNMENT)
|| pname == GL_PACK_SKIP_IMAGES
|| pname == GL_PACK_IMAGE_HEIGHT;
auto& pixel_parameters = is_packing_parameter ? m_packing_parameters : m_unpacking_parameters;
switch (pname) {
case GL_PACK_ALIGNMENT:
RETURN_WITH_ERROR_IF(param != 1 && param != 2 && param != 4 && param != 8, GL_INVALID_VALUE);
m_pack_alignment = param;
break;
case GL_UNPACK_ROW_LENGTH:
RETURN_WITH_ERROR_IF(param < 0, GL_INVALID_VALUE);
m_unpack_row_length = static_cast<size_t>(param);
break;
case GL_UNPACK_ALIGNMENT:
RETURN_WITH_ERROR_IF(param != 1 && param != 2 && param != 4 && param != 8, GL_INVALID_VALUE);
m_unpack_alignment = param;
pixel_parameters.pack_alignment = param;
break;
case GL_PACK_IMAGE_HEIGHT:
case GL_UNPACK_IMAGE_HEIGHT:
RETURN_WITH_ERROR_IF(param < 0, GL_INVALID_VALUE);
pixel_parameters.image_height = param;
break;
case GL_PACK_LSB_FIRST:
case GL_UNPACK_LSB_FIRST:
pixel_parameters.least_significant_bit_first = (param != 0);
break;
case GL_PACK_ROW_LENGTH:
case GL_UNPACK_ROW_LENGTH:
RETURN_WITH_ERROR_IF(param < 0, GL_INVALID_VALUE);
pixel_parameters.row_length = param;
break;
case GL_PACK_SKIP_IMAGES:
case GL_UNPACK_SKIP_IMAGES:
RETURN_WITH_ERROR_IF(param < 0, GL_INVALID_VALUE);
pixel_parameters.skip_images = param;
break;
case GL_PACK_SKIP_PIXELS:
case GL_UNPACK_SKIP_PIXELS:
RETURN_WITH_ERROR_IF(param < 0, GL_INVALID_VALUE);
pixel_parameters.skip_pixels = param;
break;
case GL_PACK_SKIP_ROWS:
case GL_UNPACK_SKIP_ROWS:
RETURN_WITH_ERROR_IF(param < 0, GL_INVALID_VALUE);
pixel_parameters.skip_rows = param;
break;
case GL_PACK_SWAP_BYTES:
case GL_UNPACK_SWAP_BYTES:
pixel_parameters.swap_bytes = (param != 0);
break;
default:
RETURN_WITH_ERROR_IF(true, GL_INVALID_ENUM);